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 a positive integer, you add its negative counterpart.

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. It is always a non-negative number.

Front

How do you find the difference between two elevations?

Back

To find the difference between two elevations, subtract the lower elevation from the higher elevation.

Front

What is the result of -23 + (-9)?

Back

The result is -32.

Front

If Emily is at -40 feet and swims up 10 feet, what is her new depth?

Back

Her new depth is -30 feet.

Front

What is the result of adding two negative integers, -135 and -239?

Back

The result is -374.

Front

How do you represent a car moving backwards in terms of integers?

Back

A car moving backwards can be represented by negative integers, where the distance moved back is subtracted from its position.

Front

What is the depth of a diver who goes down 22 feet and then down 7 more feet?

Back

The depth is -29 feet.