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TCAP
Some Reminders
Carefully read each question
Read the entire question and all the answer
choices
Underline or circle key words….NOT
DO the work…
…draw pictures
…write the problem
DON’T just do it on a calculator
DO all calculations twice
(remember the calculator only does what
you put in it!)
Positive – Negative Key
Negative
Numbers
Press this
key AFTER
the number
Then
CHECK
display
Tricky Expressions
Evaluate –(-ab)3
when a = -2 and b = -1
Insert values for varibles, then simplify
a
b
-1 (-1 x (-2) x (-1))3
-1 ( 2 x (-1) )3
-1 (-2) 3
-1 x 8
-8
Follow order of
operations
Percent Key
Percent Key
Only use this
key to make a
percent number
a decimal to
use for
computation
Percent Key
This key
DOES NOT
change a
decimal into a
percent!!!!
Fraction Keys
Mixed Numbers
Fractions
1 2/3
2/3
1 unit 2 / 3
2 / 3
Fraction Keys - Simplify
Simplify and =
Reduce proper
fractions like:
2/4
14/28
25/1000
A b/c
Changes
improper
fractions to
mixed numbers
12/4
15/1
199/54
Box and Whisker Plots
Median
Lower
Quartile
Lower
extreme
25%
25%
Upper
Quartile
25%
25%
Interquartile Range (75-35=40)
10
20
30
40
50
60
70
80
90
100
Upper
extreme
Exponents
Square
Any exponent
53
22 = 4
122 = 144
32 = 9
Key:
5 yx 3 =
53 = 125
Know the difference!!
-X2
X2
The opposite
X = -3
of x2
-3 x -3 = 9
X = -3
-3 x -3 = 9
opposite = -9
Area = 49
each side is 7
7 x 7 = 49
49
Key
49
then
Square Roots
Some
numbers
are not
PERFECT
SQUARE
so the
square root
will not be
a whole
number
24
= 4.89
Proportions
Look for words like:
Ratio
Rate
Similar
15’ flagpole
28’ shadow
15 x 22
330
330/28
11.78
=
x tall tree__
22” shadow
= 28x
= 28x
= 28x/28
=x
Similar Triangles
x
12
5
Find corresponding
sides to write your
proportion
then solve!!
15
=
15 x = 60
x=4
Probability
Number of Favorable Outcomes
Number of Total Possible Outcomes
Relationships of values
Directly
Proportion
Y
x
y = Kx
linear
Inversely
Proportional
xy = k
and y = k/x
nonlinear
Function Check
Match type of relation with an equation.
Directly Proportional
A. y = x2 + 3
Linear Equation
B. y = x –1
Inversely Proportional
C.
24 = xy
Nonlinear Equation
D.
y = -2x
Function Check
Directly Proportional;
Inversely Proportional
Linear,
Non-linear
A
D
C
B
x
2
y
5
x
2
y
12
x
2
y
12
x
2
y
4
3
6
3
8
3
18
3
9
4
7
4
6
4
24
4
16
Function Check
Match type of relation with an equation.
Directly Proportional; Inversely Proportional
Linear, Non-linear
A
Not a straight line
B
Straight line and
passes through
(0,0)
C
Straight line but
doesn’t pass
through (0,0)
D
Not a straight line
one value increases while the
other decreases
Y
X
Just Remember
It’s not confusing!!
You know this.
Just make sense of the information given!