Adding and Subtracting Integers

Adding Integers

100

8+5

13

200

-11+12

1

300

-25+28

3

400

-13+(-18)

-31

500

-35+22

-13

Subtracting Integers

100

23-5

18

200

-9-6

-15

300

-20-(-17)

-3

400

15-(-4)

19

500

38-(25)

13

Rules

100

When you add integers with the same sign you add the absolute values of the integers and _________ the sign the same.

Keep

200

When you add integers with different signs you subtract the absolute values of the integers and use the sign of the integer with the __________ absolute value.

Higher/Bigger/Greater/Larger

300

When subtracting integers the first integer stays the __________.

Same

400

When subtracting integers you have to change the subtraction sign to a(n) ________.

Addition sign

500

Subtracting integers is actually _____________ the ___________.

Adding the opposite

Vocab

100

The answer to an addition problem

Sum

200

The answer to a subtraction problem

Difference

300

One positive and one negative that cancel each other out is called....

Additive Inverse (will also accept opposites)

400

What is the definition of absolute value?

The distance a number is away from zero.

500

What is an integer?

A positive or negative whole number, or zero.

A number that is not a percentage, decimal, or fraction.