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 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: -2 - (-8)

Back

6

Front

If the temperature is 6 degrees F and drops 9 degrees F, what is the new temperature?

Back

-3 degrees F

Front

Bob lost 5 points on his test and 9 points on another page. What is the total loss?

Back

-14 points (equation: -5 + -9 = -14)

Front

What is the profit if a band earns $525 and spends $60?

Back

$465 (calculation: 525 - 60 = 465)

Front

Calculate: -8 - 6

Back

-14

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 a positive integer and a negative integer?

Back

Subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.