12/17 Multiplying Rationals(Integers)

If I multiply a negative and a positive, what will the answer be?

• Positive

• Negative

If I multiply a positive and a positive, what will the answer be?

• Positive

• Negative

If I multiply two negatives what will the answer be?

• Negative

• Positive

-9(8)

• 17
• 1
• -1
• -72

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

(-5)(-9)

• 45
• -45
• 4
• 14

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

An airplane ascends 22 feet per second. How high would in travel in 2 seconds? Express the rate of the​ airplanes change in height.

• 44

• -44

• -11

• 11

A beach towel loses 2 mg with each​ wash-and-dry cycle. The product 4(−2​) represents change in the mass after 4 ​wash-and-dry cycles. 

• 2
• -8
• 8
• 6

(7)(4)

• 28

• -28

(2)(-5) 

• -10
• 10

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

(-9)(-8)

• -72
• 72

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B