Adding & Subtracting Integers

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

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

Front

What is the result of -2 - (-8)?

Back

6

Front

Which expression has the greatest value: -7 + (-3), 11 − (-5), -9 + 5, or 12 − 6?

Back

11 − (-5) has the greatest value.

Front

How do you represent the operation of moving backwards on a number line?

Back

Moving backwards is represented by negative values.

Front

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

Back

-32

Front

How do you find the distance between two integers on a number line?

Back

The distance is found by taking the absolute value of the difference between the two integers.

Front

What is the distance from -7 to 5 on a number line?

Back

12

Front

What is the sum of two negative integers?

Back

The sum of two negative integers is always negative.