Integer Addition/Subtraction

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

Front

What does it mean to add integers?

Back

Adding integers involves combining their values. If both integers are positive, the result is positive. If both are negative, the result is negative. If one is positive and one is negative, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.

Front

What does it mean to subtract integers?

Back

Subtracting integers means adding the opposite. For example, to subtract a negative integer, you add its positive counterpart.

Front

What is the result of -25 + 11?

Back

-25 + 11 = -14

Front

What is the result of -632 + 632?

Back

-632 + 632 = 0

Front

What is the result of 5 - (-12)?

Back

5 - (-12) = 5 + 12 = 17

Front

What does the expression -7 + 7 equal?

Back

-7 + 7 = 0

Front

What is the result of -2 - (-8)?

Back

-2 - (-8) = -2 + 8 = 6

Front

What is the rule for adding two negative integers?

Back

When adding two negative integers, the result is negative and you add their absolute values.

Front

What is the rule for adding two positive integers?

Back

When adding two positive integers, the result is positive and you simply add their values.