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 negative rational numbers?

Back

To add two negative rational numbers, you add their absolute values and keep the negative sign.

Front

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

Back

The result depends on the absolute values of the numbers. If the positive number is larger, the result is positive; if the negative number is larger, the result is negative.

Front

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

Back

-8.58

Front

Evaluate: 3 + (-(-7)) + (-4)

Back

6

Front

What does the expression -4 - (-2) simplify to?

Back

-4 + 2

Front

What is the result of subtracting a negative number from a negative number?

Back

Subtracting a negative number is the same as adding its absolute value.

Front

Evaluate: -5 - 15 - (-5) + 15

Back

0

Front

What is the rule for subtracting rational numbers?

Back

To subtract a rational number, add its opposite.

Front

Evaluate: 0 - (-4)

Back

4