Adding/Subtracting Rational Numbers

Adding Integers

100

7+8

15

200

-19 + (-5)

-24

300

5 + (-8)

-3

400

-8 + 6

-2

500

-98 + 52

-46

Subtracting Integers

100

12 - 6 

6

200

6 - 10

-4

300

-14 - 9

-23

400

9 - (-7)

16

500

-5 - (-7)

2

Adding Rational Numbers

100

1.5 + 23.88

25.38

200

2/5 + (-1/3)

1/15

300

-9.8 + (-99.8)

-109.6

400

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

-5 11/14

500

100.02 + (-9.999)

90.021

Subtracting Rational Numbers

100

9.9 - 10.89

-0.99

200

-1/3 - 1/2

-5/6

300

2/5 -(-7/8)

1 11/40

400

-9.567 -(-7.54)

-2.027

500

-1 3/4 - 6 2/5

-8 3/20

Mixed Review

100

What is the absolute value of -90?

90

200

The temperature at 8am was 5 degrees. At 10pm it was -7 degrees. What is the difference in temperature from 8am to 10pm?

12 degrees

300

A fish was 12 feet below sea level then swam down 60 more feet. Where is the fish now located?

-72 feet or 72 feet below sea level.

400

What is the absolute value of -7/8?

7/8

500

-1 + -9 -(-7)

-3