Add/Subtract 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: -99 + 137

Back

38

Front

Calculate: -42 + 42

Back

0

Front

Calculate: -3 - (-3)

Back

0

Front

A shark is swimming 32 feet below the surface. It ascends 5 feet and then descends 13 feet. What is the total change in position?

Back

-40 ft

Front

The golfer's scores are -4, -5, -1, and 4. What is the final score?

Back

-6

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.

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. For example, -3 + -5 = -8.