7.NS.1 - + &-

1.

1 point

Which expression is equivalent to 0?

eight less than ten minus two

negative eleven plus seven plus five

twenty-two minus forty plus nineteen twenty-two minus forty plus nineteen twenty-two minus forty plus nineteen twenty-two minus forty plus

negative seventeen minus two plus fifteen

2.

1 point

Dalton is playing a game in which the object is to obtain a 0 by adding the points scored during each round.

Round 1 Round 2 Round 3 Round 4 Round 5
27 –4 –18 3

Based on the points he scored during the first 4 rounds, what score does Dalton need on the 5th round?

-52

-8

8

52

3.

1 point

Which situation results in a final value of exactly zero?

A student earned $7.50 for each of 8 hours of work. He used $60 of this money to buy school supplies.

The temperature outside was 15° below 0 at 7:00 a.m. The temperature rose 3° in each of the next 4 hours.

A scuba diver descended for 2.4 minutes at a rate of 30 feet per minute. The diver ascended for 1.2 minutes at a rate of 15 feet per minute.

A baker received an order to bake 120 cupcakes. The baker completed the order by baking 24 cupcakes every 30 minutes over a period of 5 hours.

4.

1 point

Which expression is not equivalent to 0?

one minus eight plus seven

eleven plus four minus fifteen

zero minus six plus five plus one

seventeen plus twelve minus thirty

5.

1 point

Which equation is true?

.

6.

1 point

Wendy received a bill for $25 from a magazine club. She paid the magazine club $25. This can be expressed by the following equation.

Which mathematical property justifies that the balance in her account is $0?

additive inverse

distributive property

multiplicative inverse

additive property of zero

7.

1 point

What is the opposite of -2/5 ?

-5/2

-2/5

2/5

5/2

8.

1 point

.

9.

1 point

.

10.

1 point

.

11.

1 point

.

12.

1 point

.

13.

1 point

.

14.

1 point

.

15.

1 point

.