Sharp EL W535B User Manual

EL-W535B Calculator  
Teaching Activities  
For The Classroom  
Jeremy Ross  
Table of Contents  
Calculator Layout  
Special Functions  
Examples  
1
2
6
7
8
Using the Sharp EL-W535B Calculator  
TEACHING ACTIVITIES FOR THE CLASSROOM  
BASIC ARITHMETIC  
Calculator Activity  
9
Practice Activity  
10  
FRACTIONS  
Calculator Activity  
Practice Activity  
11  
12  
POWERS AND ROOTS  
Calculator Activity  
13  
14  
Practice Activity  
PARENTHESES AND EDITING  
Calculator Activity  
15  
16  
Practice Activity  
ANGLE CONVERSIONS  
Calculator Activity  
17  
18  
Practice Activity  
TRIGONOMETRIC FUNCTIONS  
Calculator Activity  
19  
20  
Practice Activity  
INVERSE TRIGONOMETRIC FUNCTIONS  
Calculator Activity  
21  
22  
Practice Activity  
COORDINATE CONVERSIONS  
Calculator Activity  
23  
24  
Practice Activity  
LOGARITHMS  
Calculator Activity  
Practice Activity  
25  
26  
INVERSE LOGARITHMS  
Calculator Activity  
27  
28  
Practice Activity  
BASE CONVERSIONS  
Practice Activity  
29  
30  
Practice Activity  
RANDOM NUMBERS, DIE, COINS, AND INTEGERS  
Calculator Activity  
31  
32  
Practice Activity  
PROBABILITY  
Calculator Activity  
Practice Activity  
33  
34  
1 VARIABLE STATISTICS  
Calculator Activity  
35  
36  
Practice Activity  
2 VARIABLE STATISTICS & LINEAR REGRESSION  
Calculator Activity  
Practice Activity  
ANSWERS  
37  
38  
39  
1
Special Functions of the Sharp EL-W535B Calculator  
 Modes. This calculator has three modes. NORMAL, STAT, and DRILL mode.  
To access these modes press  
STAT, and for DRILL.  
followed by  
for NORMAL,  
for  
 Degrees. The EL-W535B can be set to degrees, radians, or grads. Press  
and enter for DRG. Then press for degrees, for radians,  
for grads.  
and  
 Display. There are five display notation systems. To set the number of decimals  
places press for FSE. For fixed decimal type and then choose  
your TAB or decimal setting. To set the calculator for scientific notation press  
. Now enter the number of significant figures. To set the calculator for  
engineering notation press  
and then enter the desired TAB setting. To set  
or  
the floating-point number system in scientific notation press either  
to choose NORM1 or NORM2. To choose WriteView, which displays formulas  
and equations just like textbooks, press followed by . Then press  
. For Line Editor press followed by . Then press . If in  
Line Editor you can choose an entry mode by pressing and then  
for insert and for overwrite.  
 Hyperbolic Functions. Press  
and the function key,  
,
, or  
.
Enter the angle. Then press  
.
 Trigonometric Functions. Press the trigonometric function key,  
,
, or  
. Enter the angle. Then press  
.
 Inverse Hyperbolic Functions. Press  
followed by  
and the inverse  
trigonometric function key  
.
,
,
. Enter the value. Then press  
 Inverse Trigonometric Functions. Press  
trigonometric function key  
followed by the inverse  
,
,
. Enter the value, then press  
.
2
 Pi. Press  
.
 Degrees-Minutes-Seconds. Enter the degrees. Press  
Press . Enter the seconds. Press . Press  
. Enter the minutes.  
to convert to  
decimal degrees.  
 Exponents. Enter the base. Press  
. Enter the exponent. Press  
.
 Square roots. Press  
. Enter the radicand. Then press .  
 Squares. Enter the number to be squared. Press  
. Then press  
.
 Base 10 Logarithms. Press  
. Enter the number. Then press  
. Enter the number. Then press  
.
 Base e Logarithms. Press  
.
 Base Logarithms. If in WriteView mode press  
. Enter the base. Then  
. If in Line Editor press  
press  
and enter the number. Then press  
. Enter the base. Then press  
. Enter the number. Then Press  
.
 Higher roots. Enter the index. Press  
followed by  
. Enter the  
radicand. Then press  
.
 Cube roots. Press  
. Enter the radicand. Then press  
.
 Reciprocals. Enter the number. Press  
followed by  
. Then press  
.
 Antilogarithms. Press  
. Enter the exponent. Then press  
.
 Exponentials. Press  
followed by  
. Enter the exponent. Then press  
.
 Cubes. Enter the number to be cubed. Press  
. Then press  
.
3
 Scientific Notation. Enter the number. Press  
press  
. Enter the power. Then  
.
 Euler’s Number. To enter e press  
followed by  
.
 Fractions. Enter the numerator. Press  
. Enter the denominator. Then  
press  
.
 Mixed Numbers. Enter the whole number. Press  
numerator. Press . Enter the denominator. Then press  
. Enter the  
.
 Memory. The calculator has 9 memories. Memory calculations can be  
performed in NORMAL and STAT modes. Enter the value to be stored. Press  
. Press the location you wish to store the value A-F, M, X, or Y.  
 Recall Memory. Press  
. Press the location you wish to access A-F, M, X,  
or Y.  
 Last Answer Recall. Perform a calculation. Press the operation key. The last  
answer will be recalled. Enter the number. Then press  
.
 Definable Memories. You can store functions or operations in definable  
memories (D1-D4). Press  
function ,  
. Press the location you wish to store your  
. Press the operation you want to store.  
,
,
 Change. You can change your answer from decimals to mixed numbers to  
fractions by pressing . Also, you can change your answer from decimals or  
fractions to answer containing the pi symbol or square root symbol by pressing  
.
 Random. You can generate random numbers, dice, coin flips, or integers. Press  
. Press  
for random dice rolls from 1 to 6. Press  
heads and 1 is tails. Press for random integers between 0 and 99.  
for random numbers between 0 and 1. Press  
for random coin flips where 0 is  
 P<->R Conversion. To convert to polar coordinates enter your x-coordinate first.  
Then press  
. Then enter the y-coordinate. Press  
. To convert  
4
to rectangular coordinates enter your r-value. Press  
theta. Press  
. Then enter your  
.
 Factorial. Enter the number. Press  
followed by  
. Then press  
.
 Combinations. Enter the larger number. Press  
number. Then press  
. Enter the smaller  
.
 Permutations. Enter the larger number. Press  
the smaller number. Then press  
followed by  
. Enter  
.
 Signed Numbers. Enter  
. Enter the number.  
 Absolute Value. Press  
. Enter the expression. Press  
.
 Binary. To convert from one of the supported base systems into binary enter the  
number. Then press  
.
 Hexadecimal. To convert from one of the supported base systems into  
hexadecimal enter the number. Then press  
.
 Octadecimal. To convert from one of the supported base systems into  
octadecimal enter the number. Then press  
.
 Decimal. To convert from one of the supported base systems into decimal enter  
the number. Then press  
.
 Pentadecimal. To convert from one of the supported base systems into  
pentadecimal enter the number. Then press  
.
5
Examples:  
Please refer to the following examples and the keystrokes required to enter each  
problem. From these simple examples more complicated expressions can be easily  
entered.  
1
9  
2
3 1  
2  
4 3  
17 3 2  
12 23 34  
15333%  
log10 lne  
log2 4  
103 e2  
sin30  
cos10  
tanh 78  
3!  
10C5  
6P1  
6
Using the Sharp EL-W535B Calculator  
GETTING STARTED  
The National Council of Teachers of Mathematics and many other organizations with a  
commitment to the mathematics education of our youth have all given their support to  
the ongoing and appropriate use of calculators. In this document, convincing arguments  
for the ongoing use of calculators to enhance the mathematical capabilities of students  
at all grade levels are presented as well as a description of the features expected to be  
available on calculators. The EL-W535B uses WriteViewtechnology and allows  
students to enter equations as they are seen in their textbooks.  
ACTIVITY AND PRACTICE SHEETS  
The fifteen calculator activities and practice sheets found in this book have been  
designed to be used with the Sharp EL-W535B calculator. The activities have been  
written and developed for students in grades nine through twelve. Some of the activities  
will be more appropriate for students in a particular grade, while others could be used at  
any grade level. Of course, the classroom teacher can and should make the decision as  
the appropriateness of each activity.  
Each activity page has an objective statement and some practice key strokes. The  
activity page does not attempt to teach mathematics. It only identifies the mathematics  
being used and demonstrates the calculator key strokes necessary to conduct a  
calculation. The practice page provides activities for the students to practice using the  
key strokes presented on the activity page. Answers to the activity and practice sheets  
are provided at the end of this booklet.  
7
TEACHING ACTIVITIES  
FOR THE CLASSROOM  
The Sharp EL-W535B was designed with you and your students in mind. The following  
activities have been written to provide the practice students need to succeed in  
mathematics, as they become familiar with the wonderful features of this exciting and  
powerful mathematical tool.  
8
Calculator Activity  
BASIC ARITHMETIC  
OBJECTIVE: To perform basic operations by developing a sequence of numbers.  
Performing a specified operation repeatedly can generate a sequence of  
numbers. For example, if you start with the number 4 and add 2  
repeatedly you will generate the sequence 4,6,8,10
 
1. Add 13 to 54 twice:  
STEP 1: Enter 13 by pressing  
STEP 2: Add by pressing  
.
.
.
STEP 3: Enter 54 by pressing  
STEP 4: Find the first sum by pressing  
STEP 5: Add 13 again by pressing  
.
.
2. Subtract 9 from 32 once.  
STEP 1: Enter 32 by pressing  
.
STEP 2: Subtract by pressing  
STEP 3: Enter 9 by pressing  
.
.
STEP 4: Find the difference by pressing  
.
3. Multiply -2 by 5 three times.  
STEP 1: Enter –2 by pressing  
STEP 2: Multiply by pressing  
STEP 3: Enter 5 by pressing  
followed by  
.
.
.
STEP 4: Find the first product by pressing  
STEP 5: Multiply by 5 again by pressing  
STEP 6: Multiply by 5 a third time by pressing  
.
.
.
9
NAME ___________________________________________ DATE________________  
BASIC ARITHMETIC  
Use your EL-W535B to develop a series of sequences.  
1. Find the first seven numbers of the sequence starting with –3 where each  
additional term is found by adding 4.  
-3, ___, ___, ___, ___, ___, ___, …  
2. Find the first four numbers of the sequence starting with 2 where each  
additional term is found by adding 1.  
2, ___, ___, ___, …  
3. Find the first five numbers of the sequence starting with 6 where each  
additional term is by adding 3.  
6, ___, ___, ___, ___, …  
4. Find the first three numbers of the sequence starting with 144 where each  
additional term is found by dividing by 2.  
144, ___, ___, …  
5. Find the first six terms of the sequence starting with 729 where each  
additional term is found by dividing by –3.  
729, ___, ___, ___, ___, ___, …  
6. Find the first three terms of the sequence starting with 1 where each  
additional term is found by multiplying by 45.  
1, ___, ___, …  
7. Find the first five terms of the sequence starting with 100 where each  
additional term is found by subtracting 10.  
100, ___, ___, ___, ___, …  
8. Find the first four terms of the sequence starting with 1 where each  
additional term is found by adding 20.  
1, ___, ___, ___, …  
10  
Calculator Activity  
FRACTIONS  
OBJECTIVE: To perform basic operations with fractions.  
1
7
3
8
1. Simplify  
1
STEP 1: Enter by pressing  
.
7
STEP 2: Add by pressing  
.
3
STEP 3: Enter  
by pressing  
.
8
STEP 4: Find the sum by pressing  
.
1
5
2. Simplify  
. Then convert to a decimal  
2 13  
1
STEP 1: Enter by pressing  
.
2
STEP 2: Subtract by pressing  
.
5
STEP 3: Enter  
by pressing  
.
13  
STEP 4: Find the difference by pressing  
STEP 5: Convert to a decimal by pressing  
.
.
3
2
3. Simplify 1 6 . Then convert to an improper fraction.  
4
3
3
STEP 1: Enter 1 by pressing  
.
4
STEP 2: Multiply by pressing  
.
2
STEP 3: Enter 6 by pressing  
.
3
STEP 4: Find the product by pressing  
.
STEP 5: Convert to an improper fraction by pressing  
.
11  
NAME ___________________________________________ DATE________________  
FRACTIONS  
Perform the indicated operations with fractions using your  
EL-W535B.  
1 1 1  
1. Find the arithmetic mean of the following fractions , ,  
.
2 4 16  
2. Find the arithmetic mean of the following fractions and convert to a  
1 2 3 4 5  
decimal , ,  
,
,
.
8 9 10 11 12  
1
6
7
1
3. Simplify 1  
9 .  
20  
5
1
3
4
5
6
7
8
4. Simplify  
.
2
1
1
1
1
3
5. Simplify 1  1  
.
2
3
2
4
5
1
6
1
6
6. Simplify 3    
and convert to an improper fraction.  
3
8
2 11 2 11  
3
1
7. Simplify 85 6 .  
2
6
5  
4
52 42  
22  
8. Simplify  
.
12  
Calculator Activity  
POWERS AND ROOTS  
OBJECTIVE: To perform basic operations with powers and roots.  
3
1. Calculate 32  
STEP 1: Enter 32 by pressing  
.
STEP 2: Cube it by pressing  
.
STEP 3: Calculate the answer by pressing  
.
2. Calculate (5 3)6 .  
5
STEP 1: Enter 3 by pressing  
.
STEP 2: Raise the expression to the 6th power by pressing  
.
STEP 3: Calculate the answer by pressing  
.
3
3. Calculate  
51  
3
STEP 1: Enter  
by pressing  
.
STEP 2: Enter 51 by pressing  
.
STEP 3: Calculate the answer by pressing  
.
4. Evaluate 24  
STEP 1: Enter 24 by pressing  
.
STEP 2: Calculate the answer by pressing  
.
13  
NAME ___________________________________________ DATE________________  
POWERS AND ROOTS  
Use your EL-W535B to perform the indicated operations with the  
following equations that contain powers and roots.  
1. Simplify 12 22 32 42 52  
____________________________  
2. Simplify 1 2 3 4 5  
____________________________  
3. Is ( 3 7)2 32 7 2 ? Explain your answer.  
____________________________  
____________________________  
____________________________  
3
4. Simplify 23  
____________________________  
3
5. Simplify 233  
____________________________  
5 52 42 5 52 42  
6. Simplify  
22  
22  
____________________________  
14  
Calculator Activity  
PARENTHESES AND EDITING  
OBJECTIVE: To perform basic operations with parentheses by finding the volume of a  
sphere, by recalling the expressions, and editing them to perform a new  
calculation.  
4
The volume of a sphere is defined to be Volume r3 , where r is the  
3
radius of the sphere.  
1. Given the radius is 2 find the volume of the sphere.  
4
   
STEP 1: Enter  
by pressing  
.
   
3
   
STEP 2: Insert the pi symbol by pressing  
.
STEP 3: Enter 2 by pressing  
.
STEP 4: Raise 2 to the third power by pressing  
STEP 5: Calculate the answer by pressing  
and then  
.
.
2. Edit the previous equation and solve the volume of the sphere given  
the radius is 1. Then convert the answer to a decimal  
STEP 1: Recall the previous equation by pressing  
or  
.
STEP 2: Move the cursor so it is to the immediate right of the third  
power.  
STEP 3: Delete the power, the parenthesis, the 2, and the square root by  
pressing five times.  
STEP 4: Enter the number 1 by pressing  
STEP 5: Raise 1 to the third power by pressing  
STEP 6: Calculate the answer by pressing  
followed by  
.
.
.
STEP 7: Press  
to convert it to an improper fraction. Press  
one more time to convert it to a decimal.  
15  
NAME ___________________________________________ DATE________________  
PARENTHESES AND EDITING  
Use your EL-W535B and the formula to find the volume of  
a sphere. Recall and edit previous equation to prevent  
typing the whole expression over and over again.  
4
Volume r3  
3
1. Find the volume of the sphere whose radius is 6.  
____________________________  
2. Find the volume of the sphere whose radius is 5.  
____________________________  
3. Find the volume of the sphere whose radius is 9.  
____________________________  
4. Find the volume of the sphere whose radius is 10.  
____________________________  
5. Find the volume of the sphere whose diameter is 10.  
____________________________  
6. Find the volume of a sphere whose diameter is 12.  
____________________________  
16  
Calculator Activity  
ANGLE CONVERSIONS  
OBJECTIVE: To make angle conversions by finding the missing angle of a polygon.  
Angles can be expressed in degrees, radians and grads. Degrees can be  
expressed in either decimal degrees or degrees-minutes-seconds.  
Remember 180= radians = 200 grads. The formula for the sum of the  
angles of an n-side polygon in degrees is 180(n-2). Before inputting an  
angle for conversion, press  
angular units.  
and then choose the appropriate  
1. Convert 45to radians and grads.  
STEP 1: Set the angular units to degrees by pressing  
.
STEP 2: Enter 45 by pressing  
.
STEP 3: Convert to radians by pressing  
STEP 4: Convert to grads by pressing  
.
.
2. Convert 1123'58"to decimal degrees.  
STEP 1: Enter 1123'58" by pressing  
.
STEP 2: Calculate decimal degrees by pressing  
STEP 3: Convert to a decimal by pressing  
.
.
3. Convert 2.718to degrees-minutes-seconds.  
STEP 1: Set the angular units to degrees by pressing  
STEP 2: Enter 2.718by pressing  
.
.
STEP 3: Calculate degrees-minutes-seconds by pressing  
.
17  
NAME ___________________________________________ DATE________________  
ANGLE CONVERSIONS  
The sum of the angles in degrees of an n-side polygon is 180(n-2).  
Remember 180  radians 200grads. Before inputting an angle for  
conversion press  
and then choose the corresponding angular  
units. Use your EL-W535B to find the missing angle in the specified  
units.  
1. A triangle has two angles, which are 45and 60 . Find the missing  
angle and express your answer in radians.  
_____________________  
2. A pentagon has four angles, which are 30, 30 , 60, and 100. Find  
the missing angle and express your answer in grads.  
_____________________  
3. A triangle has two angles, which are 100 grads and 20 grads. Find  
the missing angle and express your answer in radians.  
_____________________  
4. A hexagon has five angles, which are 1.5radians, .3radians,  
.4radians, .5radians, and radians. Find the missing angle and  
express your answer in degrees.  
_____________________  
5. A four-sided figure has three angles, which are 16.3, 22.1, and 45.  
Find the missing angle and express your answer in degrees-minutes-  
seconds.  
_____________________  
18  
Calculator Activity  
TRIGONOMETRIC FUNCTIONS  
OBJECTIVE: To find the distance between points by using trigonometric functions.  
The law of sines and the law of cosines can help determine the sides and  
a
b
c
angles of triangles. The law of sines is as follows  
.
sinsin sin  
The law of cosines is as follows c2 a2 b2 2abcos.  
1. Using the law of sines find the length of side a given  
37, 53,b 4 .  
STEP 1: Set the angular units to degrees by pressing  
.
STEP 2: Multiply 4 bysin(37) by pressing  
.
STEP 3: Divide bysin(53) by pressing  
.
2. Using the law of cosines fine the length of c given  
a 5,b 12,radians .  
2
STEP 1: Set the angular units to radians by pressing  
.
STEP 2: Add 52 and 122 by pressing  
.
2
STEP 3: Subtract 2512cos( ) by pressing  
.
STEP 4: Take the square root by pressing  
.
Note: Tangent can be used in a similar manner as sine as cosine  
19  
NAME ___________________________________________ DATE________________  
TRIGONOMETRIC FUNCTIONS  
Use your EL-W535B together with the law of sines and the law of cosines  
to find the distance of the missing side  
a
b
c
The law of sines is  
.
sinsin sin  
The law of cosines is c2 a2 b2 2abcos.  
1. Given 30,63,a 11determine the length of side c.  
___________________  
2. Given 16 grads, 69 grads, b 123 find the length of side a.  
___________________  
3. Given a 30,b 40,1.5radians find the length of side c.  
___________________  
4. Given a 15,c 30, 45find the length of side b.  
___________________  
5. Given b 13,c 23,100grads find the length of side a using the  
law of sines.  
___________________  
20  
Calculator Activity  
INVERSE TRIGONOMETRIC FUNCTIONS  
OBJECTIVE: To perform operations with inverse trigonometric functions.  
1. Find in degrees when tan1  
STEP 1: Set the angular units to degrees by pressing  
.
STEP 2: Enter tan1 (1) by pressing  
.
STEP 3: Calculate the answer by pressing  
.
2. Find in degrees when cos0  
STEP 1: Set the angular units to degrees by pressing  
.
STEP 2: Enter cos1 (1) by pressing  
.
STEP 3: Calculate the answer by pressing  
.
2
3. Find in radians when sin  
2
STEP 1: Set the angular units to radians by pressing  
.
2
STEP 2: Enter sin1 (  
) by pressing  
2
.
STEP 3: Calculate the answer by pressing  
.
21  
NAME ___________________________________________ DATE________________  
INVERSE TRIGONMETRIC FUNCTIONS  
Use your EL-W535B and the law of sines and the law of cosines to find  
the missing angle.  
a
b
c
The law of sines is  
.
sinsin sin  
The law of cosines is c2 a2 b2 2abcos.  
1. Given a 2,b 7, 23find in grads.  
___________________  
2. Given a 34,c 21,94 grads, find in radians.  
___________________  
3. Given a 3,b 4,c 5find in degrees.  
___________________  
4. Given a 40,b 24,c 17 find in radians  
___________________  
5. Given a 5,b 12,c 13 find in degrees.  
___________________  
22  
Calculator Activity  
COORDINATE CONVERSIONS  
OBJECTIVE: To convert from polar coordinates to rectangular coordinates and vice  
versa.  
A point on a circle can be described with rectangular coordinates (x, y)or  
polar coordinates (r,), where r is the radius of the circle and is the  
angle counterclockwise from the positive x-axis.  
(r,)  
1. While in degrees convert the rectangular coordinates (1,1) to polar  
coordinates.  
STEP 1: Set the angular units to degrees by pressing  
STEP 2: Enter 1,1 by pressing  
STEP 3: Convert to polar coordinates by pressing  
.
.
.
2. While in radians convert the polar coordinates of (2 2,60) to  
rectangular coordinates.  
STEP 1: Set the angular units to radians by pressing  
.
STEP 2: Enter 2 2,60 by pressing  
.
STEP 3: Convert to rectangular coordinates by pressing  
.
23  
NAME ___________________________________________ DATE________________  
COORDINATE CONVERSIONS  
A point on a circle can be described with rectangular coordinates (x, y)or  
polar coordinates (r,), where r is the radius of the circle and is the  
angle counterclockwise for the positive x-axis.  
Before converting, press  
and then choose degrees, radians,  
or grads. Use your EL-W535B to find the corresponding point on the  
circle.  
1. While in degrees convert the rectangular coordinates (2,2) to polar  
coordinates(r,).  
r ________________  
________________  
2. While in radians convert the rectangular coordinates (2 3,3) to polar  
coordinates (r,).  
r ________________  
________________  
3. While in degrees convert the polar coordinates (4,3 5) to rectangular  
coordinates (x, y).  
x ________________  
y ________________  
4. While in degrees convert the polar coordinates (1,1.5) to rectangular  
coordinates (x, y).  
x ________________  
y ________________  
5. While in grads convert the rectangular coordinates (1,1)to polar  
coordinates (r,).  
r ________________  
________________  
24  
Calculator Activity  
LOGARITHMS  
OBJECTIVE: To get a basic understanding of logarithms base 10, base e , and other  
bases by solving equations.  
1. Find log1000.  
STEP 1: Enter log by pressing  
STEP 2: Enter 1000 by pressing  
.
.
STEP 3: Calculate the answer by pressing  
.
.
.
2. Find log10.  
STEP 1: Enter log by pressing  
STEP 2: Enter 10 by pressing  
.
.
STEP 3: Calculate the answer by pressing  
3. Find ln e .  
STEP 1: Enter ln by pressing  
STEP 2: Enter e by pressing  
.
STEP 3: Calculate the answer by pressing  
4. Find lne2 .  
STEP 1: Enter ln by pressing  
STEP 2: Enter e2 by pressing  
.
STEP 3: Calculate the answer by pressing  
.
5. Find log2 4  
STEP 1: To enter log2 press  
.
STEP 2: Enter 4 by pressing  
.
STEP 3: Calculate the answer by pressing  
.
25  
NAME ___________________________________________ DATE________________  
LOGARITHMS  
Use your EL-W535B to solve to following equations for the unknown.  
1. Solve for x . x 5 2log123  
_____________________  
2. Solve for y . y 215(1ln3)  
_____________________  
log6 36  
3. Solve for z . z 54   
2
_____________________  
1
4. Solve for x . x log100 lne   
2
_____________________  
5. Solve for y . y log21 100 ln2  
_____________________  
log25  
6. Solve for z . z log2 32   
ln 200  
_____________________  
26  
Calculator Activity  
INVERSE LOGARITHMS  
OBJECTIVE: To perform antilogarithmic operations.  
1. Calculate 1023  
STEP 1: Enter 10^ by pressing  
.
STEP 2: Enter 23by pressing  
STEP 3: Calculate the answer by pressing  
.
.
2. Find 1063 in scientific notation with three significant figures.  
STEP 1: Set the calculator to scientific notation with three significant  
figures by pressing  
.
STEP 2: Press  
.
STEP 3: Enter 6x3 by pressing  
STEP 4: Calculate the answer by pressing  
.
3. Find e((74)3)  
STEP 1: Enter e^ by pressing  
STEP 2: Enter

7 4 3 by pressing  
.
STEP 3: Calculate the answer by pressing  
.
27  
NAME ___________________________________________ DATE________________  
INVERSE LOGARITHMS  
Use your EL-W535B to solve the following equations for the given  
unknown.  
1. Solve for x . x 2 1056*2  
_____________________  
5
e2  
2. Solve for y . y   
_____________________  
2
3. Solve for z . z 13103  
_____________________  
5
e4  
4. Solve for x . x 1025  
_____________________  
5. Solve for y . y e3 2 2101  
_____________________  
106  
102(31)  
6. Solve for z . z e23  
_____________________  
28  
Calculator Activity  
BASE CONVERSIONS  
OBJECTIVE: To convert to and from binary, decimal, hexadecimal, octadecimal, and  
pentadecimal base systems.  
Before converting press  
followed by either  
,
,
,
,
.
1. Convert the binary number 10011001 to decimal.  
STEP 1: Set the calculator to binary by pressing  
.
STEP 2: Enter 10011001 by pressing  
.
STEP 3: Convert to decimal by pressing  
.
2. Convert the hexadecimal number 16841601 to octadecimal.  
STEP 1: Set the calculator to hexadecimal by pressing  
.
STEP 2: Enter 16841601 by pressing  
.
STEP 3: Convert to octadecimal by pressing  
.
3. Convert the decimal number 144169 to pentadecimal.  
STEP 1: Set the calculator to decimal by pressing  
STEP 2: Enter the number 144169 by pressing  
.
.
STEP 3: Convert to pentadecimal by pressing  
.
29  
NAME ___________________________________________ DATE________________  
BASE CONVERSIONS  
Use your EL-W535B to convert to and from binary, decimal, hexadecimal,  
octadecimal, and pentadecimal base systems.  
Before converting make sure you are in the right base system by pressing  
followed by either  
,
,
,
,
.
1. Convert the octadecimal number 161033 to pentadecimal.  
____________________________  
2. Convert the hexadecimal number 123 to binary.  
____________________________  
3. Perform the indicated operations in hexadecimal and then convert  
your answer to octadecimal. 82 (23 12)  
____________________________  
4. Perform the indicated operations in decimal and then convert your  
1
answer to binary. 15 3   
36 24  
6
____________________________  
5. Convert the binary number 10101010 to decimal, octadecimal, and  
pentadecimal.  
____________________________  
____________________________  
____________________________  
30  
Calculator Activity  
RANDOM NUMBERS, DIE, COINS, AND INTEGERS  
OBEJCTIVE: To generate random numbers, dice throws, coin tosses, and integers.  
1. Generate 4 random numbers.  
STEP 1: Press  
.
STEP 2: To generate random numbers press  
.
STEP 3: Generate the first random number by pressing  
STEP 4: Generate the second random number by pressing  
STEP 5: Generate the third random number by pressing  
STEP 6: Generate the fourth random number by pressing  
.
.
.
.
2. Generate 3 random dice throws.  
STEP 1: Press  
STEP 2: To generate random dice throws press  
STEP 3: Generate the first random dice throw by pressing  
.
.
.
STEP 4: Generate the second random dice throw by pressing  
STEP 5: Generate the third random dice throw by pressing  
.
.
3. Generate 3 random coin tosses.  
STEP 1: Press  
.
STEP 2: To generate random coin flips press  
.
STEP 3: Generate the first random coin flip by pressing  
STEP 4: Generate the second random coin flip by pressing  
STEP 5: Generate the third random coin flip by pressing  
.
.
.
4. Generate 2 random integers.  
STEP 1: Press  
.
STEP 2: To generate random integers press  
.
STEP 3: Generate the first random integer by pressing  
STEP 4: Generate the second random integer by pressing  
.
.
31  
NAME ___________________________________________ DATE________________  
RANDOM NUMBERS, DIE, COINS, AND INTEGERS  
Use your EL-W535B to help generated a sequence of random numbers,  
dice, coins, and integers.  
1. Generate a sequence of 4 random integers.  
___, ___, ___, ___  
2. Generate a sequence of 5 random dice throws.  
___, ___, ___, ___, ___  
3. Generate a sequence of 10 random coin flips.  
___, ___, ___, ___, ___, ___, ___, ___, ___, ___  
4. Generate a sequence of 3 random integers.  
___, ___, ___  
5. Generate a sequence of 12 dice throws and based on that sequence  
what is the probability of rolling a 6?  
___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___  
_______________  
6. Generate a sequence of 10 random coin flips and based on that  
sequence what is the probability of getting heads?  
___, ___, ___, ___, ___, ___, ___, ___, ___, ___  
_______________  
32  
Calculator Activity  
PROBABILITY  
OBJECTIVE: To get a basic understanding factorials, combinations, and permutations.  
A combination is used when order does not matter. A permutation is used  
when order does matter.  
1. Find 10!.  
STEP 1: Enter 10!by pressing  
.
STEP 2: Calculate by pressing  
.
2. How many different ways can you choose 1 from a group of 6?  
STEP 1: Enter the larger number, 6, by pressing  
STEP 2: Enter the combination symbol by pressing  
STEP 3: Enter the smaller number, 1, by pressing  
.
.
.
STEP 4: Calculate the answer by pressing  
.
3. Find the number of permutations of 4 things taken 2 at a time.  
STEP 1: Enter the larger number, 4, by pressing  
STEP 2: Enter the permutation symbol by pressing  
STEP 3: Enter the smaller number, 2, by pressing  
.
.
.
STEP 4: Calculate the answer by pressing  
.
33  
NAME ___________________________________________ DATE________________  
PROBABILITY  
Use your EL-W535B to find the following number of combinations and  
permutations and to evaluate factorials.  
1. How many groups or 4 can be formed from a class of 10 where order  
does not matter?  
____________________________  
2. How many groups of 4 can be formed from a class of 10 where order  
does matter?  
____________________________  
3. How many sets of 3 officers can be formed from a group of 15 where  
order does not mater?  
____________________________  
4. How many sets of 3 officers can be formed from a group of 15 where  
order does matter?  
____________________________  
5. Evaluate 5!  
____________________________  
6. What is 0!? What is 1!? Explain why the answer is so.  
____________________________________________________  
____________________________________________________  
____________________________________________________  
34  
Calculator Activity  
1 VARIABLE STATISTICS  
OBJECTIVE: To perform 1 variable statistics.  
1. Analyze the set  
15,25,35,35,50
using 1 variable statistics.  
STEP 1: Set the calculator to single variable statistics by pressing  
.
STEP 2: Enter 15 by pressing  
STEP 3: Enter 25 by pressing  
STEP 4: Enter 35 two times by pressing  
STEP 5: Enter 50 by pressing  
.
.
.
.
STEP 6: To determine the mean of the sample press  
.
STEP 7: To determine the sample mean standard deviation press  
.
STEP 8: To determine the population standard deviation press  
.
STEP 9: To determine the number of samples press  
.
STEP 10: To determine the sum of the samples press  
.
STEP 11: To determine the sum of squares of samples press  
.
35  
NAME ___________________________________________ DATE________________  
1 VARIABLE STATISTICS  
Use your EL-W535B to analyze the following sets using 1 variable  
statistics.  
1. Analyze the set {1,1,2,2,2,3,3,3,3}  
x  
______________  
______________  
______________  
______________  
______________  
sx  
x   
n   
x   
x2   
______________  
2. Analyze the set {10,15,20,25,25}  
x   
______________  
______________  
______________  
______________  
______________  
sx   
x   
n  
x   
x2   
______________  
3. Analyze the set {1,1,2,3,5,8}  
x   
______________  
sx   
x   
n   
______________  
______________  
______________  
______________  
x   
x2   
______________  
4. Analyze the set {1,2,4,8,16,32}  
x   
______________  
sx   
x   
n   
______________  
______________  
______________  
______________  
x   
x2   
______________  
36  
Calculator Activity  
2 VARIABLE STATISTICS & LINEAR REGRESSION  
OBJECTIVE: To perform 2 variable statistics and run a linear regression  
Analyze the data set using 2 variable statistics and perform a linear regression.  
X
Y
1
2
1
2
2
4
3
7
10  
10  
STEP 1: Set the calculator to 2 variable statistics by pressing  
STEP 2: Enter 1,2 two times by pressing  
.
.
STEP 3: Enter 2,4 by pressing  
STEP 4: Enter 3,7 by pressing  
STEP 5: Enter 10,10 by pressing  
.
.
.
STEP 6: To determine the mean of the sample press  
.
STEP 7: To determine the sample mean standard deviation for x press  
.
STEP 8: To determine the population standard deviation for x press  
.
STEP 9: To determine the number of samples for x press  
STEP 10: To determine the sum of the samples for x press  
STEP 11: To determine the sum of squares of samples for x press  
.
.
.
STEP 12: To determine the mean of the samples for y press  
.
STEP 13: To determine the sample mean standard deviation for y press  
STEP 14: To determine the population standard deviation for y press  
.
STEP 15: To determine the sum of the samples for y press  
.
STEP 16: To determine the sum of squares of samples for y press  
.
STEP 17: To determine a press  
STEP 18: To determine b press  
.
.
NOTE: Other regressions can be done in a similar manner by just setting your  
EL-W535B to the proper STATS Mode.  
37  
NAME ___________________________________________ DATE________________  
2 VARIABLE STATISTICS & LINEAR REGRESSION  
Use your EL-W535B to analyze the following sets using 2 variable  
statistics and to perform a linear regression.  
1. Analyze the set and run a linear regression.  
X
Y
1
1
2
2
3
4
4
8
x  
______________  
______________  
______________  
______________  
______________  
sx  
x   
n   
x   
x2   
y   
______________  
______________  
______________  
______________  
sy   
y   
y   
______________  
y2   
a  
______________  
______________  
______________  
b  
2. Analyze the set and run a linear regression.  
X
Y
1
2
2
7
3
1
4
8
5
2
6
8
x   
______________  
______________  
______________  
______________  
______________  
sx   
x   
n   
x   
x2   
y   
______________  
______________  
______________  
______________  
sy   
y  
y   
y2   
a   
b  
______________  
______________  
______________  
______________  
38  
ANSWERS  
Basic Arithmetic  
Logarithms  
p. 9: 1. 67, 80 2. 23 3. –10, -50, -250  
p. 25: 1. 3 2. 1 3. 1 4. 2 5. 2  
p. 10: 1. 3,1,5,9,13,17,21 2. 2,3,4,5  
3. 6,9,12,15,18 4. 144,72,36 5. 729,243,  
81,27,9,3 6. 1,45,2025  
p. 26: 1. 9.180 2. 10.507 3. 55  
2 2  
4.  
5. 0.777 6. 18.950  
2
7. 100,90,80,70,60 8. 1,21,41,61  
Fractions  
Inverse Logarithms  
p. 27: 1. 1000000 2. 1.001018 3. 2.718  
29  
56  
35  
3
p. 11: 1.  
2. .115 3.  
p. 28: 1. 11017 2. 0.677 3. 12.925  
4. 0.230 5. 8.405 6. 98.052  
13  
3
7
p. 12: 1.  
2. 0.286 3. 11  
4.   
48  
995  
28  
24  
2
5
517  
5.  
6.  
7. 45 8.  
3
264  
6
4
Powers and Roots  
Base Conversion  
p. 13: 1. 729 2. 3.737 3. 0.765 4. 4  
p. 14: 1. 55 2. 8.382 3. No 4. 512  
p. 29: 1. 153 2. 2641013001 3. 14103134  
p. 30: 1. 3323013 2. 100100011 3. 4 4. 10 5. 170,  
252, 1140  
1
5. 2048 6.  
2
Parentheses and Editing  
Random  
p. 15: 1. 11.848 2. 4.189  
p. 31: Answers will vary  
p. 32: Answers will vary  
2
p. 16: 1. 2882. 166 3. 972  
3
1
2
4. 1333 5. 166 6. 288  
3
3
Angle Conversions  
Probability  
p. 33: 1. 3628800 2. 6 3. 12  
p. 34: 1. 210 2. 5040 3. 455 4. 2730  
5. 120 6. 1, 1  
4
5
p. 17: 1. , 50 2. 11.399 3. 243'4.8"  
5
9
2
5
p. 18: 1.  
2. 355  
3.  
4. 54  
12  
5. 27636'0"  
Trigonometric Functions  
1 Variable Statistics  
p. 35: 1. 32,13.038, 11.662, 5, 160, 5800  
p. 36: 1. 2.222, 0.833, 0.786, 9, 20, 50 2. 19, 6.519,  
5.831, 5, 95, 1975 3. 3.333, 2.733, 2.494, 6, 20, 104 4.  
10.5, 11.862, 10.828, 6, 63, 1365  
p. 19: 1. 3.014 2. 13  
p. 20: 1. 19.602 2. 34.611 3. 48.272  
4. 22.104 5. 18.974  
Inverse Trigonometric Functions  
2 Variable Statistics  
p. 37: 1. 3.4, 3.782, 3.382, 5, 17, 115, 5, 3.464, 3.382, 25,  
173, 2.147, 0.839  
p. 38: 1. 2.5, 1.291, 1.118, 4, 10, 30, 3.75, 3.096, 2.681,  
15, 85, -2, 2.3 2. 3.5, 1.871, 1.708, 6, 21, 91, 4.667,  
3.327, 3.037, 28, 186, 2.467, 0.629  
p. 21: 1. 452. 903.  
4
p. 22: 1. 7.12 2. 0.662 3. 904. 2.692  
5. 22.620  
Coordinate Conversions  
p. 23: 1. 1.414, 45 2. -2.694, -0.862  
p. 24: 1. 2.828, 45 2. 4.583, 0.714  
3. 3.973, 0.467 4. 1.000, 0.026  
5. 1.414, 150  
39  

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