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 keep 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

What is the result of -19 - 7?

Back

-26

Front

What is the result of 23 - (-5)?

Back

28

Front

What is the result of -15 + -8?

Back

-23

Front

What is the result of 13 + -21?

Back

-8

Front

If a diver is at -22 feet and dives down 7 more feet, what is his new depth?

Back

-29 feet

Front

If a diver is at -29 feet and swims back up 14 feet, what is his new depth?

Back

-15 feet

Front

If a diver is at -15 feet and dives down another 4 feet, what is his new depth?

Back

-19 feet