Download Type in - Leon County Schools

CALCULATOR
TRAINING
FOR THE
EOC
CASIO fx-260 Solar
To the basics…..
Turn your
calculator
ON
1) ADDITION
3) MULTIPLICATION
Type 23 + 12 =
Type 33 X 20 =
35, but you knew that.
Press AC a couple of
times after each
operation.
2) SUBTRACTION
Type 89 – 35 =
54, but you knew
that too
660, but you knew
that (right?)
4) DIVISION
Type 45 ÷ 9 =
5, of course!
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)
400
20
6)
506.25
22.5
SQUARES
No problem…..
To find 782, type
78 x2
Voila….the answer is 6084
Find the square of each number.
7) 428
183,184
8) 4.239
17.969121
Now, to everyone’s favorite ….
To type the fraction
7
12
type 7 a b/c 12.
To type the mixed number
42 type, 4 a b/c 2 a b/c 3
3
Do the following fraction operations.
9) 42 + 4
3 5
5 7/15
10) 8  33
11 16
11) 5  34
12
5
1½
25 / 228
Clear your calculator and type in :
50 + 5 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”?
Type in (45 ÷ 3) X 10 =
[(…45 ÷ 3…)] X 10 = 150
Simplify.
12) 14 – (25 + 2)
-13
13) (10 X 6) – (12 X 5)
0
Let’s move up a dimension and work with
To find 203, type in
20 SHIFT
. You
should get 8000.
Find
14) 113
1331
15) (-16)3
-4096
NOTE : type [(…16 +/….)]SHIFT
The +/- button changes the sign of the
number.
LARGER EXPONENTS
To find 134, type in 13 xy 4 =. You should get
28, 561.
Find
16) 95
17) (-3)8
59,049
6561
FRACTIONAL EXPONENTS
To determine the
2
value of 83 , type
8 xy (2 ÷ 3) =
You should get 4.
Find the value of
18)
64
3
2
512
19)
27
1/9
-2
3
20)
1
4
16
2
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 1.89209…
Natural logs work the same as logarithms.
To find the ln100, type in 100 ln and get
4.605170…
To find a power of 10, that is find 105.
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
22,026.46579…
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 0.0222222…
FACTORIALS : Type in the number,
SHIFT, x!. So, 22! Can be found by
typing in 22 SHIFT x!
The answer on the screen is
1.12400072821 which is scientific
notation for 1.124000728 X 1021.
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.
TRIGONOMETRY … YIPPEE!!!
Matching
1)Sine
2)Cosine
3)Tangent
Correct
Answers:
1)C
2)A
3)B
a) adjacent / hypotenuse
b) opposite / adjacent
c) opposite / hypotenuse
TRIGONOMETRY … YIPPEE!!!
Fill in the correct ratio that
matches each of the
following as it relates to the A
picture.
1)
2)
3)
4)
5)
6)
Sine A
Cosine A
Tangent A
Sine B
Cosine B
Tangent B
10
6
C
8
Correct Answers:
1) 8/10
4) 6/10
2) 6/10
5) 8/10
3) 8/6
6) 6/8
B
TRIGONOMETRY … YIPPEE!!!
Set up an
equation, then
solve for x:
A
10
x
42
C
Correct Answer:
1) Sine 42 = x / 10
Type in 10 . Now multiply it
by 42 sin … then push the
= symbol …
x = 6.7
B
TRIGONOMETRY … YIPPEE!!!
Set up an
equation, then
solve for y.
A
10
42
C
y
Correct Answer:
Cosine 42 = y / 10
Type in 10 . Now multiply it by 42 cos
… then push the = symbol …
x = 7.4
B
TRIGONOMETRY … YIPPEE!!!
Set up an
equation, then
solve for z.
Set up: tan z = 5/12
A
5
How to:
Type in 5 ÷ 12, then =.
C
Now push the button
labeled “2nd”, followed by
the button “tangent”.
The correct answer ( to
the nearest whole #) is
23 degrees.
z
12
B
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?
15
5000
x
15
Runway
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).
15
5000
x
15
Runway
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)
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 ?
Set up:
Sin 75 = x / 16
How to:
Push 16 times 75 sin, then push
the = sign.
Answer: approx 15.5 feet
EQUATION EDITOR
TUTORIAL
http://demo.tds.airast.org/eqtu
torial/?c=florida_pt&language=t
rue