Adding & Subtracting Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you add two rational numbers with different signs?

Back

When adding two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the result of adding a negative number to a positive number?

Back

The result will be less than the positive number, and the sign will depend on which number has the larger absolute value.

Front

Evaluate: -3.28 - (-4.4) + (-9.7)

Back

-8.58

Front

Which expression is equivalent to: -7 - 8?

Back

-7 + (-8)

Front

Evaluate: −3 − (−4) − (−2) + 1

Back

4

Front

Evaluate: −5 − 15 - (-5) + 15

Back

0

Front

Find an equivalent expression for: -4 - (-2)

Back

-4 + 2

Front

What is the rule for subtracting a negative number?

Back

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

Front

How do you simplify the expression: -7 - (-8)?

Back

-7 + 8 = 1.