Enter Title

Subtracting Integers

100

21-34

-13

200

-10-8

-18

300

45-(-13)

58

400

-7-(-3)

-4

500

What do we do when we have minus negative, -(-)

We change the sign to positive

Subtracting Fractions

100

2/3 - 5/6

-1/6

200

3/4 -(-1/4)

4/4 or 1

300

-5/6 - 3/4

-19/12 = -1 7/12

400

1/3 - 1/3

0

500

7/10 - 3/20

11/20

Decimals

100

.45 + 3.7

4.15

200

.45 - 3.7

-3.25

300

When adding or subtracting decimals, what do we need to do with our decimals?

Line them up

400

56 - .0765

55.9235

500

4.87 + .98

5.85

Adding

100

23 + 21

44

200

-2 + 12

10

300

11 + (-13)

-2

400

1/4 + 1/2

3/4

500

1 2/3 + 7/6

17/6 = 2 5/6

Misc.

100

The distance a number is from 0.  Always positive

Absolute Value

200

A number and its opposite.  Sum is 0

additive inverse

300

Number that is less than 0

Negative

400

Any number that can be written as a fraction

Rational Number