Properties
Addition
Subtraction
Word Problems
Grab bag
100

Name the property that allows you to change the order of numbers being added

commutative property

100

-8 + (-17)

-25

100

3 - (-19)

-22

100

Jenna goes scuba diving 132 feet below the surface. She the dives down 15 more feet. Write and solve an addition sentence that describes Jenna's present depth.

-132 + -15 = -147

100

What is the opposite of -6.7?

6.7

200

Name the property that allows you to regroup numbers that are being added

associative property

200

-89 + 51

-38

200

-14 - (-21)

7

200

The stock market has a loss of 15 1/2 points on Monday. On Tuesday the stock market gains 40 1/4 points. What is the over all change in the stock market for the week so far?

24 3/4

200

Fill in the blank:

7.2 + _____ = 0

-7.2

300

A number plus its opposite is called 

the additive inverse

300

-91.2 + (-18.25)

-109.45

300

(-5.2) - 3.3

-8.5

300

The highest and lowest temperatures ever recorded in Africa are 136° F and -11° F. The highest temperature was recorded in Libya, and the lowest temperature was recorded in Morocco. What is the difference in these temperatures?

147° F

300

8 + -8 is an example of

additive inverse

400

0 plus any number is the number

additive identity

400

(18 1/5) + (-21 7/10)

-3 1/2

400

(-1 1/5) - (- 3 3/4)

2 11/20

400

Superman flies from an underground lair that is 72 1/8 feet under ground to the top of a building that is 682 1/16 feet above ground. Write and solve an equation to represent the difference in heights.

682 1/16 - (-72 1/8) = 754 3/16

400

use the rule of subtraction to rewrite 8 - 15 

8 + (-15)

500

changing subtraction to adding the opposite

the rule of subtraction

500

-7/12 + (-8/18)

-1 1/36

500

(-8/11) - (-4 1/2) + (-7 1/4)

-3 21/44

500

Mimi goes on a new roller coaster at six flags that starts 22.7 feet underground. The first climb is 121.72 feet and the first drop is 75.4 feet. Then the roller coaster does an upside down loop that goes up 62.1 feet and comes down 68.5 feet. What is the final height of the car at the end of the coaster?

17.22 feet

500

use the rule of subtraction to rewrite -7 - 3

-7 + (-3)

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