Integer addition & subtraction

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

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

Calculate: -13 - (-13)

Back

0

Front

Calculate: 20 + (-6)

Back

14

Front

Calculate: -17 + 2

Back

-15

Front

If you have a debt of $10 and you pay $4, what is your new balance?

Back

You owe $6.

Front

What is the result of adding a positive integer and a negative integer?

Back

The result depends on the absolute values of the integers. If the positive integer is larger, the result is positive; if the negative integer is larger, the result is negative.

Front

What is the result of subtracting a positive integer from a negative integer?

Back

The result is more negative. For example, -5 - 3 = -8.

Front

What is the result of adding two negative integers?

Back

The result is a negative integer. For example, -3 + (-2) = -5.