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

What does it mean to add two negative rational numbers?

Back

Adding two negative rational numbers results in a more negative number.

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, and if the negative number is larger, the result is negative.

Front

How do you subtract a negative number from a positive number?

Back

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

Front

What is the equivalent expression for -4 - (-2)?

Back

-4 + 2.

Front

Evaluate: -7 - 8.

Back

-15.

Front

What is the result of 3 + (-h) + (-4) when h = -7?

Back

6.

Front

What is the result of -5 - 15 - (-5) + 15?

Back

0.

Front

How do you simplify the expression -7 - 8?

Back

You combine the numbers to get -15.

Front

What is the rule for adding two rational numbers with different signs?

Back

Find the difference between their absolute values and use the sign of the number with the larger absolute value.