Adding and Subtracting Integers

Review

1

What is the Absolute Value?

The distance of a number from zero

2

What are integers?

The set of whole numbers and their opposites.

3

What is the opposite of adding?

subtracting

4

|-6|

Absolute value of -6 = 6

5

What is the opposite of subtracting?

Adding

Adding Integers

1

-5 + 9

4

2

-12 + 5

-7

3

-16 + (-17)

-33

4

What would be the sign of adding two negative numbers?

Negative

5

-16+18+-17

-15

Subtracting Integers

1

-4 - 6

-10

2

4 - 11

-7

3

15 - (-7)

22

4

-27 - (-3)

-24

5

-10 - 11 - (-3)

-18

Mix

1

-2 - 3

-5

2

-10 + 30

20

3

21 - (+5)

16

4

Subtracting a negative is the same thing as...

Adding a positive

5

-10 + (-2) - 5

-17