Module 2 Review

What property means for every number, a, there is a number, -a, so that a + (-a) = 0, and (-a) + a = 0.

• opposites attract

• additive inverse

• multiplicative inverse

• there is no property

What is the sum of -7+7=

• 7

• -14

• 14

• 0

During a football game, Kevin gained 5 yards on the first play. Then he lost seven yards on the second play. How many yards does Kevin need on the next play to get the team back where they started?

• 2

• -2

• 0, they are already back where they started.

• 5

Suppose your grandmother gave you 20 dollars for your birthday. You spent $16 on a movie and a snack. Which equation below represents this situation?

• (-16) + 20 = -4

• 20 + 16 = 36

• 20 + (-16) = 4

• None of the above.

True or False. The length of an arrow on a number line represents the absolute value of that number.

• True

• False

David and Ashley are playing the integer card game. David drew three cards: -8, -7, and 4. What is the sum of the cards in David's hand?

• 11

• -19

• -11

• 5

DO NOT USE YOUR CALCULATOR!

What is the sum of 34.54 + (-29.763) =

• 4.783

• 4.777

• -4.777

• 15.223

DO NOT USE YOUR CALCULATOR!!

What is the sum of (-67.53) + (-45.8) =

• -21.73

• 38.33

• -113.33

• 113.33

DO NOT USE YOUR CALCULATOR!

What is the sum of 19.87 + (-18.6)

• 38.47

• -1.27

• 8.87

• 1.27

If the temperature is -3 degrees F at 10 pm and it falls five degrees overnight, what is the resulting temperature?

• 2 degrees F

• -2 degrees F

• -8 degrees F

• 7 degrees F