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 rational numbers with different signs?

Back

To add two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

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

Back

The result depends on the absolute values of the numbers. If the positive number's absolute value is greater, the result is positive; if the negative number's absolute value is greater, the result is negative.

Front

Evaluate: 3 + (-5)

Back

-2

Front

What does it mean to subtract a negative number?

Back

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

Front

Evaluate: 10 - (-3)

Back

13

Front

What is the result of adding two negative numbers?

Back

The result is always negative and is found by adding their absolute values.

Front

Evaluate: (-4) + (-6)

Back

-10

Front

How do you simplify the expression: -7 - 8?

Back

It simplifies to -7 + (-8).

Front

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

Back

0