How is the product of 2 and –5 shown on a number line?




Which point on the number line represents the product ?

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?




Laurie was scuba diving. Each time she dove 5 feet deeper, she would stop and clear her ears. Each time that this totaled 20 feet deeper, she would stop and check her instruments to make sure they were working properly. After Laurie had checked her instruments 3 times, she was at her maximum depth. Which expression best represents Laurie’s maximum depth?




What is the product of any integer and –1?
Clara multiplies and gets 42. Is her answer reasonable?

Bobby’s football team received four five-yard penalties in the first quarter, which meant his team lost yardage in their progress toward the goal line. If the team started at the 45-yard line and ended at the 25-yard line, what was the change in their progression down the field as a result of these penalties?
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?




Which shows two expressions that are equivalent to ?





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?
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