Unit 4 - Integer Operations

Cassie used integer counters to model and solve a problem. Which equation did she model?

• 7 + (-4) = 3

• 4 + (-7) = -3

• -7 + 4 = 3

• -4 + 7 = 11

Jake and Ashley are practicing addition of integers using playing cards. Black cards represent positive numbers and red cards represent negative numbers. What is sum of the cards shown?

• 10

• -11

• 21

• -1

What does the expression (-8)(-1)(-3) simplify to?

A diver is looking for a species of coral in the ocean. The dives 16 feet below the surface of the ocean. Then he goes up 5 feet. He swims back down 8 feet and then up 2 more feet before he finds the coral he is looking for. What was the depth at which the diver found the coral?

• -31 feet

• -24 feet

• 31 feet

• -17 feet

Destiny had 100 dollars in her wallet. She had a hole in her wallet, and she lost 15 dollars on her way to the mall. She lost another 30 when she was shopping. On the way home she found 10 dollars on the street.

Which represent the amount of money Destiny had in her pocket when she got home?

• 100 + (-15) + (-30) + 10

• 100 + 15 +30 + 10

• 100 + (-15) + 30 + 10

• 100 + (-15) + (-30) + (-10)

Each week at the fitness center, Jill tries to increase her time off the treadmill by 5%. Which decimal is equivalent to 5%?

• 0.5

• 5.0

• 0.005

• 0.05

Consider the model to represent the process in simplifying the expression 9 - (-6).

How can this be represented as an addition expression?

• 
• 
• 
• 

Connor used number counters to simplify an expression involving negative integers. This shows how he grouped his counters to simplify the expression.

What expression was Connor simplifying?

Which of the following problems best represents the model?

• -3 + -5 = -8

• 2 + (-5) = -3

• -5 + 2 = -3

• -3 + 2 = -5

 

Jason was the running back on the football team. He gained 12 yards, then lost 15 yards. He gained 25 yards, and then lost 4 yards.

Which of the following represents the total net yardage during these 4 plays?