Chapter 1 Test 2012-2013

Mathematics 7

Which of the following points represents a number and its absolute value?

A C and F B B and DC A and ED B and E

7.1e

1.

Multiple Answers.

Circle all true statements in the table below.

SOL 7.1e

Answer on paper and not your scantron form

2.

A

B

C

D

7.1e

If the values of the expression below are plotted on a number line, which expression would be closest to five?

|−4|

|−18|

|7|

|16|

3.

7.1f

Which of the following is equivalent to 2³?

F 2●3

G 3●3

H 2●2●2

J 2●2●2●2

4.

Fill in the blank.

Choose two values for x that will make the equation below a true sentence.

│x + 9│= 15

-24 -6 -4

0 6 24

7.1e

6.

7.3

Which list of integers is in order from least to greatest?

A |−4|, -39, 40, 41, -42

B , -4

C −42, −39, −4, |40|, 41

D 41, 40, -4, -39, -42

7.

Evaluate the expression.-5 + 12 =

F -17G -7 H 7 J 17

7.3b

8.

Which is closest to the location of point A on the number line?

-5 0 5

A -11B -7C 7D 11

A

7.3

9.

7.3a

Which model best represents -5 + (-2)?10.

Evaluate the expression.-5 – 12 + 10

A -17B -7 C 7 D 17

7.3b

11.

7.3

Which expression is represented by the model below?

F -7 + 0

G -7 + 3

H -7 + 7

J -7 + 10

12.

Fill in the Blanks.

What number belongs in the box to make the equation true?

-11 = -3 -

SOL 7.3b

Answer on paper and not your scantron form

13.

7.3 b

The value of yz will be -

F negative because both y and z are negative

G positive because both y and z are negative

H negative because z is farther from 0 than y

J positive because y is closer to 0 than z

14.

7.3c

What is the value of the expression below?

A 35

B 90

C 50

D 230

𝟓+𝟓 (𝟗÷𝟑 )𝟐15.

7.3a

16.

Which model represents -2 + 5?

A

B

C

D

7.3a

17.

Which expression is represented by the model below?

F 3 x 2

G 3 x -2

H -3 x -2

J -32

7.3a

18.

Jen evaluated the expression –

5 + 3 • 6 -

At which step did she make a mistake?

Step 1: 5 + 3 • 6 - 6Step 2: 5 + 18 - 6

Step 3: 23 - 6Step 4: 17

A Step 1

B Step 2

C Step 3

D Jen made no mistakes

7.3c

19.

7.3c

According to the order of operations, which operation should be performed first to simplify the expression?

12 + 2 ● 5

F 12 + 2

G 5 – 1

H 2 ● 5

J 5²

20.

Using the key above as a guide, what is the result of the operation in the model below?

A -13B -5C 5D 13

7.3a

21.

7.3b

22.

7.3c

Which is equivalent to

A -13B -1 C 1D 6

23.

Which expression represents the model shown below?

F -6 x -3

G -6 x 0

H -6 x 3

J -6 x 6

represents taking out a set

7.3a

24.

Two points are plotted on the number line below. 

Which of the following has the greatest value?

A W - X

B X - W

C W + X

D X • W

7.3b

W X 25.

7.3b

Evaluate the expression. -7 – (6)

F - 13G - 1H 1J 13

26.

Pure water boils at 212F. If a certain chemical is added to the water, the boiling point changes by -28F. At what temperature does the new liquid boil?

A 240 FB 184 F C -184 FD -240 F

7.3b

27.

-4 + 23 - │-4│

F -2

G 0

H 8

J 16

7.3b

28.

When simplifying the following, using order of operations, which operation should be performed first?

53248 A 8 – 4

B 24

C 2 + 3

D 53

7.3c

29.

Multiple Answers

Find the expressions which represents the Additive Inverse Property.

8 + (-8) 9 + (-10)

a + (-a) -15 + (-15)

7.16d

30.