1. CALCULATOR TRAINING FOR THE EOC
1/9/2018
CALCULATOR TRAINING FOR THE EOC
CASIO fx-260 Solar

2. To the basics…..
Turn your
calculator ON

3. 660, but you knew that (right?)
1) ADDITION
Type =
3) MULTIPLICATION
Type 33 X 20 =
35, but you knew that.
660, but you knew that (right?)
Press AC a couple of times after each operation.
4) DIVISION
Type 45 ÷ 9 =
2) SUBTRACTION
Type 89 – 35 =
5, of course!
54, but you knew that too

4. To find the square root of 100, type 100 SHIFT x2.
SQUARE ROOTS
This may work differently from what you are used to.
To find the square root of 100, type
100 SHIFT x2.
Find each square root.

5. SQUARES Find the square of each number. 7) 428 8) 4.239 No problem…..
To find 782, type
78 x2
Voila….the answer is 6084
Find the square of each number.
7) )
183,

6. Now, to everyone’s favorite ….
To type the fraction
type 7 a b/c 12.
To type the mixed number
type, 4 a b/c 2 a b/c 3
Do the following fraction operations.
9) ) 11)
5 7/15 1 ½ / 228

7. Can I get an “AMEN”? Clear your calculator and type in :
X 7. What should you get?
Press =. What does your calculator say?
Yep….85. Your calculator follows order of operations.
Can I get an “AMEN”?

8. 150 -13 0 Type in (45 ÷ 3) X 10 = [(…45 ÷ 3…)] X 10 = Simplify.

9. Let’s move up a dimension and work with
To find 203, type in
20 SHIFT You should get 8000.
Find
14) ) (-16)3
NOTE : type [(…16 +/- ….)]SHIFT
The +/- button changes the sign of the number.

10. LARGER EXPONENTS Find 16) 95 17) (-3)8 59,049 6561
To find 134, type in 13 xy 4 =. You should get 28, 561.
Find
16) ) (-3)8
59,

11. FRACTIONAL EXPONENTS 512 1 / 9 2 To determine the value of , type
8 xy (2 ÷ 3) =
You should get 4.
Find the value of
18) 19) 20)
/ 9 2

12. Attention, Algebra II students….
Logarithms : To find the base 10 (common log) of 78, type in the number first, then log. So, type in 78 log and get …
Natural logs work the same as logarithms. To find the ln100, type in 100 ln and get …

13. To find a power of 10, that is find 105
To find a power of 10, that is find Type in the exponent first, then SHIFT 10x. Type in 5 SHIFT 10x and get 100,000.
To find a power of e, again, type in the exponent first, then SHIFT ex. So, e10  10 SHIFT ex equals 22, …

14. To find the inverse of a number, type in the number, SHIFT, 1/x
To find the inverse of a number, type in the number, SHIFT, 1/x. So, the inverse of 45 can be found by typing 45 SHIFT 1/x and get …
FACTORIALS : Type in the number, SHIFT, x!. So, 22! Can be found by typing in 22 SHIFT x!
The answer on the screen is which is scientific notation for X 1021.

15. COMBINATIONS : To find 20C14, type in 20 SHIFT nCr 14 = to get 38,760
PERMUTATIONS : Work the same as combinations, though you use nPr for permutations.

16. TRIGONOMETRY … YIPPEE!!!
Matching
Sine a) adjacent / hypotenuse
Cosine b) opposite / adjacent
Tangent c) opposite / hypotenuse
Correct Answers: C A B

17. TRIGONOMETRY … YIPPEE!!! Correct Answers: 8/10 4) 6/10 6/10 5) 8/10
Fill in the correct ratio that
matches each of the following as it relates to the picture.
Sine A
Cosine A
Tangent A
Sine B
Cosine B
Tangent B A 10 6 C B 8
Correct Answers:
8/10 4) 6/10
6/10 5) 8/10
8/6 6) 6/8

18. Set up an equation, then solve for x:
TRIGONOMETRY … YIPPEE!!!
Set up an equation, then solve for x: A 10 x 42 C B
Correct Answer:
Sine 42 = x / 10
Type in 10 . Now multiply it
by 42 sin … then push the
= symbol …
x = 6.7

19. Set up an equation, then solve for y.
TRIGONOMETRY … YIPPEE!!!
Set up an equation, then solve for y. A 10 42 C B y
Correct Answer:
Cosine 42 = y / 10
Type in 10 . Now multiply it by 42 cos … then push the = symbol …
x = 7.4

20. TRIGONOMETRY … YIPPEE!!! Set up an equation, then solve for z.5
Set up: tan z = 5/12
How to:
Type in 5 ÷ 12, then =.
Now push the button labeled “2nd”, followed by the button “tangent”.
The correct answer ( to the nearest whole #) is 23 degrees. z C B 12

21. An airplane is coming in for a landing at a 15 degree
Runway
An airplane is coming in for a landing at a 15 degree
angle of depression, from an altitude of 5,000 feet.
How far (in feet) is the plane from the runway?
See if you can set up an equation to solve this
problem?

22. Sine = opposite / hypotenuse
Runway 15 x
5000 15
Sine = opposite / hypotenuse
Sine 15 = 5000 / x
Now see if you can solve the equation &
determine how far the plane is from the
runway (to the nearest foot).

23. On your calculator, you should have typed in the
Runway 15 x
5000 15
sin 15 = 5000 / x
sin 15 (x) = 5000
x = 5000 / sin 15
On your calculator, you should have typed in the
number 5000 first. Now push the ÷ symbol and the
number 15, followed the button Sine.
Now push the = symbol to get the answer of 19,319
feet (approx 3.7 miles)

24. A 16 foot ladder is placed at a 75 degree angle
with the ground. How high up is the window
that the ladder is leaning against ?

25. Set up:
Sin 75 = x / 16
How to:
Push 16 times 75 sin, then push
the = sign.
Answer: approx 15.5 feet

26. EQUATION EDITOR TUTORIAL