Multiply and Divide Integers and Rational Numbers

Choose all the positive products.

• x(-x)

• -5(-2)(-1)

• A positive number times two negative numbers.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Which is equivalent to -8? Select all that apply.

• 80 ÷ (-10)

• -80 ÷ (-10)

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Choose all the negative products.

• x(-x)

• -2(4)(-1)(3)

• -3(8)

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

• -0.09

•  $\frac{3}{25}$  

• 0.9

Tags

CCSS.7.NS.A.2A

Sam says 90 ÷ (–9) = 10. Is he correct? Explain.

• Sam is correct because a positive divided by a negative is a positive.

• Sam is not correct because a positive divided by a negative is a negative.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Jenny has $2.40 deducted from her monthly allowance every time she forgets to do a chore. If she forgets three times in one month, what will be the change in Jenny’s total allowance?

• $7.20

• $5.40

• -$6.40

• -$7.20

Tags

CCSS.7.NS.A.3

Ana is a scuba diver who has completed 5 dives for a total depth of 230 feet. Choose an equation using integers to represent the average depth of Ana’s dives in relation to the water’s surface.

• –230 ÷ 5 = –46

• 230 ÷ 5 = 46

• –230 ÷ –5 = 46

• 230 ÷ –5 = –46

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

• 45.5 ÷ 6.5 = 7

• -45.5 ÷ 6.5 = -7

• 45.5 ÷ -6.5 = -7

• 6.5 ÷ -45.5 = -1/7

Tags

CCSS.7.NS.A.2B

A submarine descends at a rate of 2.6 kilometers per hour. If the ocean floor is 6.24 kilometers below sea level, how long will it take the submarine to descend to the ocean floor. Round your answer to the nearest tenth.

• 2.4 hours

• 0.42 hours

• -2.4 hours

• -0.42 hours

Tags

CCSS.7.RP.A.3