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7.2

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MATH-7
wilson study guide 7.1, 7.2
Exam not valid for Paper Pencil Test Sessions
1
[Exam ID:3LYR67
Which is a true statement?
A 10-5 = 0.0001
B 10-3 = 0.001
C 10-2 = 0.001
D 10-1 = 0.01
2
Look at the table.
Which row in the table illustrates an equivalent fraction and decimal form?
A Row D
B Row C
C Row A
D Row B
3
A base of ten raised to a negative exponent corresponds to a number —
A greater than 1
B less than -1
C between 0 and 1
D between 0 and -1
4
Directions: Click and drag the number to the correct box.
Use the given numbers to find an equivalent fraction and decimal.
1
1000
5
Based on the pattern,
102 = 100
101 = 10
100 = 1
10-1 = 0.1
10-2 = 0.01
10-4 is equivalent to
A 0.0001
B 0.001
C 0.01
D 0.00001
6
Based on the pattern,
101 = 10
100 = 1
10-1 = 0.1
10-2 = 0.01
0.00001 is equivalent to A 10-6
B 10-4
C 10-5
D 10-3
0.001
7
Based on the pattern,
102 = 100
101 = 10
100 = 1
1
10-1 =
10
1
10-2 =
100
10-4 is equivalent to —
1
10,000
1
B
100,000
1
C
1,000
1
D
1,000,000
A
8
Directions: Click on each box to choose the answer you want to select. You must select all correct answers.
Identify values that are equivalent.
1
10
9
3
10-3
0.001
0.0001
1
10-3
Which of the following is greater than 7.24 x 1012 ?
A 7 x 1012
B 7.244 x 1012
C 7.04 x 1012
D 7.2 x 1012
10 Which of the following shows the numbers listed from least to greatest?
A 4.1 x 105, 4.01 x 105, 4.21
B 4.21 x 105, 4.1 x 105, 4.01
C 4.01 x 105, 4.1 x 105, 4.21
D 4.01 x 105, 4.21 x 105, 4.1
x 105
x 105
x 105
x 105
11 The diameter of a red blood cell is 0.0003 inches. Which expression represents this
number written in scientific notation?
A 3 x 10-4
B 3 x 104
C 0.03 x 10-2
D 0.3 x 10-3
12 Look at the table.
Which list shows the numbers ordered from greatest to least?
A List 4
B List 3
C List 1
D List 2
13
The fraction
A
B
C
D
7
is equivalent to—
8
875%
0.0875%
87.5%
0.875%
14 Which of the following shows the numbers listed from greatest to least?
1
,0.35 , 16%
3
1
B 0.35,
, 16%, 0.15
3
1
C 0.15, 16%,
, 0.35
3
1
D 16%, 0.15,
, 0.35
3
A 0.15,
15 What is √49 ?
A 9
B 6
C 8
D 7
16 Which is a square root of 361?
A 90.25
B 722
C 19
D 180.5
17 What is the length of a side of the square shown below?
A 14 inches
B 84.5 inches
C 42.25 inches
D 13 inches
18
1
cups of sugar for each cake. Donna wants to make 5
3
cakes. How many cups of sugar will she need?
Donna's recipe calls for 2
1
cups
2
1
B 11
cups
4
2
C 11
cups
3
1
D 2
cups
3
A 11
19 Which is equivalent to the expression below?
9
5
5
B
9
A
9
5
5
D 9
C -
20 Which statement is true?
A l-5l = l5l
B l5l = -5
C l5l > l-5l
D l-5l = -5
21 Directions: Click on a box to choose each statement you want to select. You must select all true statements.
Identify each true statement.
-7.1 = |-7.1|
-9 = |-9|
|-3.6| = 3.6
6 = |-6|
|12| = 12
|-4.9| = -4.9
22 The temperature in Rochester, New York on a cold night was 13°F. By morning a cold
front had come in and the temperature was -4°F. What was the difference between
the nighttime and the morning temperature?
A 13°
B 17°
C 4°
D 9°
23 The 7th grade team has a pizza party. There are 126 students on the team. If each
pizza has 8 pieces and each student will eat 2 pieces each, about how many pizzas
should the team buy?
A 32
B 29
C 30
D 33
24 Ginny lost 53 pounds. She gained 12 pounds back and then lost an additional 16
pounds. What integer represents Ginny’s change in weight?
A +28
B -4
C -57
D +57
25 Marissa bought 3 movies for $9.99 each and 2 video games for $14.99 each. These
prices included tax. She gave the cashier $70.00. How much change should she
receive?
A $49.96
B $10.05
C $59.95
D $20.04
26 Directions: Type your answer in the box. Use "/" for a fraction bar.
1
miles a day in preparation for a marathon. If Sherry runs
3
three times more than usual, how many miles would Sherry run?
Sherry normally runs 3
10 miles
27 Carson earns $6.50 an hour working at the mall. If she works on a holiday, she earns
double this hourly rate for each hour she works. What is the amount of her paycheck
if she works 10 regular hours and 10 hours on the Fourth of July, which is considered
a holiday?
A $185.00
B $195.00
C $65.00
D $130.00
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