Integer Word Problem Lesson

Integer Word Problem Lesson

Multiple Choice

Camilla was swimming along the bottom of her backyard pool at a depth of 6 feet. Then, she pushed off the bottom and rose 4 feet. What is Camilla's position now relative to the surface of the pool?

To solve the problem, Jordan added –

6+4 and came up with an answer of 2 feet. Is Jordan correct? Why or why not?

• Yes Jordan is correct.

• No. The answer should have been -2 ft, not 2 ft. She is underwater, so her position relative to the surface of the pool is negative.

• No. The answer should have been -10 ft, because the sum of the absolute value of -6 and 4 is 10. It has to be negative because the sign of the larger number with larger absolute value is negative.

• -10

Multiple Choice

A dolphin was swimming 7 meters below the surface of the ocean. It located a squid and dove down 4 more meters to eat it. What is the location of the dolphin now relative to the surface?

• -3

• 3

• 11

• -11

Multiple Choice

Bryant was playing the video game Ship, Ship Ahoy! He began Level 2 with 15 points but soon got –

6 points because his character fell overboard. What is Bryant's total score now?

• 9

• -9

• 21

• -21

Multiple Choice

Overnight, the temperature in Mayville was –4°F. But by the following afternoon, the temperature had risen 11°F. What was the temperature in Mayville that afternoon?

• 7

• -7

• 15

• -15

Multiple Choice

When Lena went to her friend's sleepover on Friday night, the temperature was –7°F. By the next morning, the temperature had risen to –1°F.

• -6

• 6

• 8

• -8