Adding and Subtracting Integers

Front

Definition of integer

Back

positive and negative numbers on a number line

Front

Rule: Adding two positive integers

Example: 4 + 6

Back

answer will be positive

Front

Rule: Adding two negative integers

Example: -3 + -7

Back

answer will be negative

Front

Rule: Subtracting a negative integer

Example: 7 - (-3)

Back

as adding its positive

Front

Back

answer will be postive

=2

Front

Back

answer will be negative

=-3

Front

Back

answer will be negative

=-14

Front

Back

answer will be positive

=11

Front

Strategy: Adding integers with different signs

Back

Subtract the smaller integer from the larger and keep the sign of the larger integer