Adding and Subtracting Integers

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 the other 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 finding the difference between them. This can be done by adding the opposite of the integer being subtracted.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction. For example, the opposite of 5 is -5.

Front

How do you subtract a negative integer?

Back

Subtracting a negative integer is the same as adding its positive counterpart. For example, 5 - (-3) is the same as 5 + 3.

Front

Calculate: -8 - (-4)

Back

-4

Front

Calculate: 12 - 14

Back

-2

Front

Calculate: -7 - (-2)

Back

-5

Front

Calculate: 1 - (-18)

Back

19

Front

What is the result of adding two negative integers?

Back

The result is always a negative integer.