Adding and Subtracting Rational Numbers

Front

When adding rational numbers with the same sign, you must:

Back

Add together and keep the sign.

Front

5 + -2

Back

3

Front

-9 + (-5)

Back

-14

Front

-31 + -7

Back

-38

Front

3 + -7

Back

-4

Front

What is a rational number?

Back

A number that can be expressed as a fraction, where both the numerator and denominator are integers.

Front

What is the sum of two positive rational numbers?

Back

The sum is positive.

Front

What is the sum of two negative rational numbers?

Back

The sum is negative.

Front

What happens when you add a positive rational number to a negative rational number?

Back

You subtract the absolute values and keep the sign of the number with the larger absolute value.

Front

What is the result of adding a rational number and its opposite?

Back

The result is zero.