Adding and Subtracting Rational Numbers

Front

What do you do when adding rational numbers with the same sign?

Back

Add together and keep the sign.

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 subtract rational numbers?

Back

To subtract rational numbers, add the opposite of the number being subtracted.

Front

What is the opposite of a number?

Back

The opposite of a number is the number with the same absolute value but a different sign.

Front

What is the first step in adding rational numbers with different signs?

Back

Find the absolute values of both numbers.

Front

When adding rational numbers with different signs, what do you do after finding the absolute values?

Back

Subtract the smaller absolute value from the larger absolute value.

Front

What do you do with the sign after subtracting absolute values of rational numbers with different signs?

Back

The sign of the result is the same as the sign of the number with the larger absolute value.

Front

What is the sum of -3 and -5?

Back

-8.

Front

What is the sum of 4 and -6?

Back

-2.

Front

What is the sum of 7 and 2?

Back

9.