Integer Addition + Review

Key Terms

100

Numbers that can be written as a fraction.

Rational numbers

200

The distance between a number and zero.

Absolute Value

300

Two different numbers that have the same absolute value.

opposite numbers (or additive inverses)

400

The set of whole numbers and their opposites.

integers

Addition of Integers

100

-20 + (-14) = 

-34

200

19 + (-7) = 

12

300

9 + (-15) + (-22) = 

-28

400

-72 + 34 + (-14) = 

-52

Addition of Rationals

100

-5/6 + (-7/6)=

-2

200

-1/4 + 3/4=

1/2

300

2.2+(-5)=

-2.8

400

8 3/5+(-9 1/5)=

-3/5

Add/Subtract Fractions & Decimals

100

3 2/10+5 3/5=

8 4/5

200

3.7 - 0.35 = 

3.35

300

10.39 - 9.23 + 1.2

2.36

400

4 1/8 - 3 3/4=

3/8

Multiply/Divide Fractions

100

4/5*1/3=

4/15

200

8/15 divide 2/5=

4/3 or   1  1/3

300

4 1/3 * 2 1/5 =

9  8/15

400

3 1/2 divide 7=

1/2