Adding Rational Numbers

-66 + 42 =

• 108

• 24

• -108

• -24

-57 + 57 =

• 114

• -114

• 0

• -0

29 + (-28) =

• 57

• 1

• -1

• -57

(-36) + (-12) =

• -48

• 24

• 48

• -24

18 + (-14) =

• -4

• 32

• 4

• -32

Sarah bought a bike that cost $260. She had a coupon that was worth $55 off the cost of any bike. Use the expression 260 + (-55) to find how much Sarah paid for her bike.

• 315

• 205

• -315

• -205

A shark is swimming 60ft below the surface of the ocean. There is a fish that is 25 feet deeper in the water. Use the expression (-60) + (-25) to describe the fish's location relative to the surface of the ocean.

• 35

• -35

• 85

• -85

Tags

CCSS.7.NS.A.1C

The high temperature one day was 30F. Then the temperature dropped 23 degrees during the night. Use the expression 30 + (-23) to find the temperature during the night.

• 53

• -53

• 7

• -7

A deep-sea diver dives 81 feet from the surface. He then dives 14 more feet. The diver's depth can be represented by -81 + (-14). What is the diver's present location?

• 95

• -95

• 67

• -67

-23 + (-9) =

• 14

• -14

• 32

• -32