Number Worlds: Unit 2 Test Review

Which problem is shown by this model?

• -3 + 7

• 0 + 4

• -3 - 7

• 3 + 4

8 + (-2) =

• -6

• -10

• 10

• 6

-4 + (-5) =

• 1

• -1

• -9

• 9

12 - (-5) =

• 12

• 17

• 14

• -6

If 6 + x = 4 + 6, then x =

• 10

• 2

• 4

• -4

What additive inverse pair has an absolute value of 15?

• 15 and -15

• 7 and 8

• -7 and -8

• -20 and 5

14 + (-3) + 11 + (-7) + 5 =

• 17 + (-18)

• 30 + (-10)

• 33 - 7

• 25 - 15

-1/4 + 0.6 + 7 + (-3/4) + 9.4 =

• 17 1/2

• 4.4

• -9.4

• 16

There are 12 steps going down to the basement. Which rational number matches this situation?

• 1

• −1

• −12

• 12

Traffic on the bridge changed by −8% compared to last year. What does this mean?

• There was 8% more traffic than last year.

• Traffic moved 8% slower this year.

• Traffic moved 8% faster this year.

• There was 8% less traffic than last year.