7.3A Integer Operations

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 with different signs?

Back

When adding integers with different signs, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.

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 adding two negative integers?

Back

The result of adding two negative integers is always a negative integer.

Front

What is the result of multiplying a negative integer by a positive integer?

Back

The result of multiplying a negative integer by a positive integer is a negative integer.

Front

What is the result of multiplying two negative integers?

Back

The result of multiplying two negative integers is a positive integer.

Front

How do you represent a withdrawal from a bank account?

Back

A withdrawal from a bank account is represented by a negative integer.

Front

If your checking account is overdrawn by $50 and you write a check for $20, what is your new balance?

Back

Your new balance is -$70.

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, and is always a non-negative number.

Front

What does it mean to subtract a negative integer?

Back

Subtracting a negative integer is the same as adding its positive counterpart.