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, add its negative counterpart.

Front

What is the opposite of a number?

Back

The opposite of a number is the number that is the same distance from zero on the number line but in the opposite direction.

Front

How do you represent a number below sea level?

Back

A number below sea level is represented as a negative integer.

Front

What is the result of -4 - (-2)?

Back

-4 - (-2) is the same as -4 + 2, which equals -2.

Front

What is the result of 27 + (-14)?

Back

27 + (-14) equals 13.

Front

How do you say -7 - (3) in words?

Back

-7 minus 3 or -7 take away 3.

Front

What is the result of (-9) + (-3)?

Back

(-9) + (-3) equals -12.

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.