Adding and Subtracting Integers

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 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 is the same as adding the opposite. For example, to subtract -3, you add +3 instead.

Front

Calculate: (-2) - (-3)

Back

1

Front

Theo had a balance of -$4 in his savings account. After making a deposit, he has $25 in his account. What is the overall change to his account?

Back

$29

Front

Calculate: 35 - (-35)

Back

70

Front

Calculate: -23 + (-7) + 5

Back

-25

Front

What is the difference between high and low temperatures?

Back

The difference is found by subtracting the lower temperature from the higher temperature.

Front

Calculate the difference between 4 degrees and -7 degrees.

Back

11 degrees

Front

What is the absolute value of an integer?

Back

The absolute value of an integer is its distance from zero on the number line, regardless of direction. For example, |-5| = 5.