Multiply and Divide Integers

8 x 3

(-2) x (-10)

13 x 12

6 x (-4)

(-11) x 5

4 x (-16)

(-8) x 10

117/13

(-154)/(-14)

(-48)/(-6)

35/5

(-40)/10

90/(-15)

(-105)/7

108/(-9)

5 x -7

-5 x -5

12/-4

-45/-5

-7 x 9

-18 / 9

- 3 x 5

A scientist is measuring the temperature change in a chemical compound. The temperature dropped 11 degrees per hour from the original temperature. After 4 hours, the temperature was 90 degrees. Find the compound's original temperature.

A mountain climber ascends 800 feet per hour from his original position. After 6 hours, his final position is 11,600 feet above sea level. Find the climber's original position.

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