Adding and 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

What does it mean to add two negative numbers?

Back

When adding two negative numbers, the result is always a negative number. You add their absolute values and keep the negative sign.

Front

Calculate: -9 + (-5)

Back

-14

Front

Calculate: -31 + (-7)

Back

-38

Front

Calculate: -12 + (-8)

Back

-20

Front

Calculate: 3 + (-7)

Back

-4

Front

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

Back

The result is always a negative number. You add the absolute values and keep the negative sign.

Front

Evaluate: -19 - 10

Back

-29

Front

What is the rule for adding a positive number to a negative number?

Back

When adding a positive number to a negative number, subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

Front

What is the result of adding two positive numbers?

Back

The result is always a positive number.