Multiplying Integers

Question 1

At 4 p.m., the temperature started to change drastically. Each hour, for three hours, the temperature decreased by 7°F. Which expression best shows another way to write the product for the temperature change?

Revolt · Accepted Answer

(Negative 1) (7 + 7 + 7)

Question 2

Parker wants to estimate the product of 12 and 4. He does the Math and gets 48. He wants to check the reasonableness of his answer, so he multiplies 10 by 4 and gets 40. Is Parker’s answer reasonable?

Revolt · Accepted Answer

Yes, because 10 is less than 12, so his estimate should be less than 48.

Question 3

What is the product of –5 and –8?

Revolt · Accepted Answer

40

Question 4

What is the product of any integer and –1?

Revolt · Accepted Answer

The product is the opposite of the integer.

Question 5

Which shows two expressions that are equivalent to ?

Revolt · Accepted Answer

and

Question 6

How is the product of 3 and 2 shown on a number line?

Revolt · Accepted Answer

A number line going from negative 7 to positive 7. An arrow goes from 0 to 3 and from 3 to 6.

Question 7

Clara multiplies and gets 42. Is her answer reasonable?

Revolt · Accepted Answer

No, because the solution should have a negative answer.

Question 8

Yan is climbing down a ladder. Each time he descends 4 rungs on the ladder, he stops to see how much farther he has to go. If Yan made 8 stops with no extra steps, which expression best shows another way to write the product of the number of ladder rungs that Yan climbed?

Revolt · Accepted Answer

(Negative 8) + (negative 8) + (negative 8) + (negative 8)

Question 9

Which point on the number line represents the product ?

Revolt · Accepted Answer

Point A

Question 10

Which shows two expressions that are equivalent to ?

Revolt · Accepted Answer

and

Multiplying Integers Answers

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