Retest Unit 1 Quizizz

Will the answer be positive or negative? Solve to justify your answer. -42 + (-54) =

• Positive, 96

• Negative, -12

• Negative, -96

• Positive, 12

Solve: 72 - (-64) =

• 136

• 8

• -8

• -136

Solve. -6.4 - (8) =

• 1.6

• -1.6

• -14.4

• 14.4

Solve. Make sure the answer is in simplest form.

3 3/8 - 1 1/8 = ?

• 2 2/8

• 2 1/4

• 4 1/2

• -2 1/4

Mike dove 10 1/4 feet into his pool. Then he climbed 19 1/2 feet into his treehouse. What is the difference between the highest and lowest places Mike has been today?

• 29 3/4

• 9 1/4

• -9 1/4

• -29 3/4

Davida and her family are traveling to the Red River for their family ski trip. At the base of the mountain the temperature was 24°F. As their car climbed up the mountain the temperature dropped to -16°F. What is the difference in the high and low temperature?

• 8

• 40

• -40

• -8

In an addition problem, when adding two negative numbers, the sum is negative.

• True

• False

Solve.

-51.2 + 50 =?

• 101.2

• -1.2

• .2

• 1.2

Solve.

1 2/3 + 1/9 = ?

• 1 7/9

• 7/9

• 2

6 + (-10) =

• 16
• -16
• 4
• -4