AnswersFL-1205040-MJ Grade 7 Mathematics A-CRUnit Test

Unit Test — Unit test Answers

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1
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Which expression is equivalent to 63.56 + (–81.47)?

A
63.56 – 81.47
B
63.56 + 81.47
C
–63.56 – 81.47
D
–63.56 + 81.47
2
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Which number line correctly shows 1.5 + 2.5?

A
A number line going from 0 to 6.5 in increments of 0.5. An arrow goes from 0 to 1.5 and from 1.5 to 4.
Option A
B
A number line going from 0 to 6.5 in increments of 0.5. An arrow goes from 0 to 1.5 and from 1.5 to 3.
Option B
C
A number line going from 0 to 6.5 in increments of 0.5. An arrow goes from 0 to 2.5 and from 2.5 to 5.
Option C
D
A number line going from 0 to 6.5 in increments of 0.5. An arrow goes from 1.5 to 3 and from 3 to 5.5.
Option D
3

What is the difference of the fractions? Use the number line to help find the answer.

Question illustration
A
Negative StartFraction 19 over 20 EndFraction
Option A
B
Negative StartFraction 11 over 20 EndFraction
Option B
C
StartFraction 11 over 20 EndFraction
Option C
D
StartFraction 19 over 20 EndFraction
Option D
4

Mr. Maddox asked four students to create a number line to help find the sum of the fractions.Which number line would be best to find this sum?

Question illustration
A
A number line going from Negative StartFraction 8 over 10 EndFraction to 0 in increments of StartFraction 1 over 10 EndFraction
Option A
B
A number line going from Negative StartFraction 3 over 10 EndFraction to positive StartFraction 3 over 10 EndFraction in increments of StartFraction 1 over 10 EndFraction
Option B
C
A number line going from StartFraction 4 over 10 EndFraction to StartFraction 11 over 10 EndFraction in increments of StartFraction 1 over 10 EndFraction
Option C
D
A number line going from 0 to StartFraction 15 over 10 EndFraction in increments of StartFraction 1 over 10 EndFraction
Option D
5

Which number is rational?

A
–2.1010010001...
B
–0.8974512...
C
1.2547569...
D
5.3333333...
6

Noa buys 6 items that each cost $4.25 and 3 items that each cost $6.75. How much does Noa spend in total?

A
$20.25
B
$25.50
C
$38.25
D
$45.75
7

Use the number line to answer the question. Which statement about graphing rational numbers is true?

Question illustration
A
The graphs of all rational numbers will be to the right of point B.
B
The graphs of all rational numbers will be to the left of point B.
C
Point D does not represent a rational number.
D
All of the points on the graph could represent rational numbers.
8

What is the simplified value of the expression below?

Question illustration
A
–24
B
–11
C
11
D
24
9

What is the first step when applying properties of operations to divide 73.85 by 4.1?

A
Multiply the divisor and dividend by 10.
B
Multiply the divisor and dividend by 100.
C
Divide the divisor and dividend by 10.
D
Divide the divisor and dividend by 100.
10

Compatible numbers for 2.4 and –0.18 are 2.5 and –0.2. What is the estimation of the product of (2.4)(–0.18) using these compatible numbers?

A
–0.5
B
–0.4
C
0.4
D
0.5
11

Emanuel used the calculations below to find the product of the given fractions. Step 1Step 2Step 3Step 4 In which step did his first error occur?

Question illustration
A
step 1
B
step 2
C
step 3
D
step 4
12

Which correctly applies the distributive property to show an equivalent expression to (8.6)(–2.5)?

A
(8)(2) – (0.6)(0.5)
B
(8)(–2) – (0.6)(–0.5)
C
(8.6)(2) – (8.6)(0.5)
D
(8.6)(–2) + (8.6)(–0.5)
13

What is the quotient of

Question illustration
A
–3.65
B
–0.365
C
0.365
D
3.65
14

A recipe that makes 4 servings calls for cup of flour. How much flour is required to make 20 servings?

Question illustration
A
cups
Option A
B
cups
Option B
C
cups
Option C
D
cups
Option D
15

Nika baked three loaves of zucchini bread. Each loaf needed cups of flour. Which expression shows the best estimate of the number of cups of flour that Nika used?

Question illustration
A
4 + 4 + 4 = 12
Option A
B
5 + 5 + 5 = 15
Option B
C
4 + 4 + 4 = 16
Option C
D
17 + 17 + 17 = 51
Option D
16

The weights of five grapefruits are 7.47 ounces, 7.23 ounces, 6.46 ounces, 7.48 ounces, and 6.81 ounces. Using the clustering estimation technique, what is the approximate total weight of the grapefruits?

A
34 ounces
B
35 ounces
C
36 ounces
D
40 ounces
17

What is the best estimate of the sum of the fractions?

Question illustration
A
12 and one-half
Option A
B
13
C
14 and one-half
Option C
D
15
18

Which rule about the sign of the quotient of two decimals (either positive or negative) is correct?

A
positive divided by positive = negative
Option A
B
negative divided by negative = positive
Option B
C
positive divided by negative = positive
Option C
D
negative divided by positive = positive
Option D
19

Which number line correctly shows 4.5 – 2.5?

A
A number line going from 0 to 4.5 in increments of 0.5. An arrow goes from 0 to 4.5 and then backwards from 4.5 to 2.
Option A
B
A number line going from negative 4.5 to 0 in increments of 0.5. An arrow goes from negative 4.5 to negative 2 and then backwards from 0 to negative 4.5.
Option B
C
A number line going from negative 2.5 to positive 4.5 in increments of 0.5. An arrow goes from negative 2.5 to 0 and also from 0 to 4.5.
Option C
D
A number line going from negative 4.5 to positive 2.5 in increments of 0.5. An arrow goes from 2.5 to 0 and from 0 to negative 4.5.
Option D
20

Which of the following repeating decimals is equivalent to ?

Question illustration
A
Negative 5.ModifyingAbove 91 with bar
Option A
B
Negative 5.ModifyingAbove 9 with bar
Option B
C
Negative 5.ModifyingAbove 19 with bar
Option C
D
Negative 5. ModifyingAbove 1 with bar
Option D

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