Unit 1 Test Review

Which of the following is an example of additive inverse?

• -3 + 3 = 0

• 1 + 1 = 2

• 2 + 0 = 2

• 3 - 1 = 2

The sum of a number and its __________________ equals zero.

• Absolute Value

• Opposite

• Reciprocal

In the last year, Best Burgers Restaurant had an overall LOSS of $50,000. What does the additive inverse of this value represent?

• the amount, in dollars, Best Burgers expects to lose this year

• the amount, in dollars, Best Burgers expects to make this year

• the amount, in dollars, Best Burgers needs to break even (or make $0)

• the amount, in dollars, Best Burgers needs to make a profit of $50,000

In Buffalo, New York, the temperature is -15°F in the morning. If the temperature dropped 6°F, what is the temperature now?

• 9°F

• 21°F

• -9°F

• -21°F

A submarine is located 750 feet below sea level. If it ascends, or rises, 300 feet, what is its new position?

• -450 feet

• 450 feet

• -1050 feet

• 1050 feet

A football team gained 8 yards on one play and then lost 15 yards on the next. Write a sum to determine the overall change in field position.

• (-8) + (-15) = -23

• 8 + 15 = 23

• 8 + (-15) = -7

• 8 + (-15) = 7

Which expression shows the additive inverse to change the subtraction problem to an addition problem for 7 ー 4?

• (-7) + 4

• (-7) + (-4)

• 7 + 4

• 7 + (-4)

Julia has $42 left in a checking account. If she writes a check for $57, what will Julia’s balance be?

• $15

• -$15

• $99

• -$99

Ms. Anderson received a $5,000 bonus. She put 1/5 in her savings account and she spent 45% on bills and groceries. How much money does she have left?

• $2,250

• $1,000

• $3,250

• $1,750

True or False?

The Commutative Property states that when we change the order of numbers when adding, the answer does not change.

• True

• False