Eighth Grade Math CBA 1
2016 – 2017
1
Anita has a collection of postage stamps from different countries. She has one book that
contains 35 stamps. She has a second book that has 7 stamps on each page. The
equation below can be used to find t, the total number of postage stamps Anita has if the
second book has p pages.
t = 35 + 7p
How many postage stamps does Anita have in all if the second book has 14 pages?
Record your answer and fill in the bubbles on your answer document. Be sure to use the
correct place value.
2
The average distance from Earth to the sun is about 9.3 x 107 miles. The average distance
from Mars to the sun is about 1.4 x 108 miles. When both planets are at their average
distance from the sun, how much farther is Mars from the sun than Earth?
F
79,000,000 mi
G
47,000,000 mi
H
107,000,000 mi
J
233,000,000 mi
1 Eighth Grade Math CBA 1
2016 – 2017
3
The diagram below represents the side view of a bike ramp.
Which of the following is closest to the value of x?
4
A
27 in.
B
32 in.
C
25 in.
D
20 in.
Dominic used the equation below to find d, the amount in dollars he would spend on
gasoline to drive a distance of m miles.
d=
(3.5)
Based on this equation, how much would Dominic spend on gasoline to drive a distance
of 180 miles?
F
$25.20
G
$21.00
H
$24.50
J
$28.00
2 Eighth Grade Math CBA 1
2016 – 2017
5
There are four students working on an assignment in a class. Mike has completed
of the
assignment, Gwen has completed 11% of the assignment, Jorge has completed 0.12 of the
assignment, and Tyler has completed
of the assignment. Which of the following lists the
students in order from least to greatest by the amount of the assignment they completed?
6
A
Gwen, Mike, Jorge, Tyler
B
Tyler, Jorge, Mike, Gwen
C
Gwen, Jorge, Mike, Tyler
D
Tyler, Mike, Gwen, Jorge
Which value of x makes this equation true?
4x – 3 = 2x + 7
F
5
G
3
H
J
3 Eighth Grade Math CBA 1
2016 – 2017
7
Connect the model below to the correct equation.
A
4x + 3 = x + 4
B
2x – 3 = 4x + 1
C
5x – 3 = 4x – 1
D
2x + 3 = 4x + 1
4 Eighth Grade Math CBA 1
2016 – 2017
8
Look at the equation modeled.
Which value of y balances the scale?
F
G
H 12
J
52
5 Eighth Grade Math CBA 1
2016 – 2017
9
10
Which point on the number line is located between
A
Point N
B
Point O
C
Point P
D
Point M
Andrew’s test score was
.
√5
and
√14
?
Which number set includes the number representing
Andrew’s test score?
F
Integer
G
Irrational
H
Rational
J
Whole
6 Eighth Grade Math CBA 1
2016 – 2017
11
What is the distance between the two points on the coordinate plane?
A
6 units
B
9 units
C
10 units
D
12 units
7 Eighth Grade Math CBA 1
2016 – 2017
12
The water levels of five Texas lakes were measured on the same day in 2010. The table
below shows the number of feet above or below normal level for each lake.
Water Levels of Texas Lakes
Lake
Conroe
Amistad
Richland Chambers
Possum Kingdom
Travis
Number of Feet Above or
Below Normal Level
0.10
—2.65
0.16
—1.43
0.07
Which list shows the numbers in the table from greatest to least?
F
—2.65, —1.43, 0.16, 0.10, 0.07
G
0.16, 0.10, 0.07, —1.43, —2.65
H
0.16, 0.10, 0.07, —2.65, —1.43
J
—2.65, —1.43, 0.07, 0.10, 0.16
8 Eighth Grade Math CBA 1
2016 – 2017
13
The graph shows the relationship between the hours spent working and the amount of
money earned.
What is the best estimate of the amount of money earned for working 9 hours?
A
$75
B
$60
C
$65
D
$70
9