Adding & Subtracting Integers

Vocab

100

Opposite

The opposite of a number is the same number from zero only in the other direction.

200

Integer

An integer is a positive and negative whole number including zero.

300

6 and -6

Opposites

400

How do you find the sum of numbers with different signs?

Subtract and take the sign of the bigger number.

Addition

100

- 5 + 9

4

200

- 12 + 5

-7

300

- 16 + (-17)

- 33

400

5 - 9

-4

Subtraction

100

- 4 - 6

- 10

200

4 - 11

-7

300

15 - (-7)

22

400

-27 - (3)

-24

Mix

100

-2 - 3

-5

200

- 10 + 30

20

300

21 - (+ 5)

16

400

Subtracting a negative is the same as ...

Adding a positive