Rational Number Operations

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 is a zero pair?

Back

A zero pair consists of two numbers that add up to zero, such as -5 and 5.

Front

Give an example of a zero pair.

Back

-10 + 10 is an example of a zero pair.

Front

What is the sum of a number and its opposite?

Back

The sum of a number and its opposite is always zero.

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

Front

What is the additive identity?

Back

The additive identity is 0, because adding 0 to any number does not change the value of that number.

Front

What is the result of -7 + 7?

Back

-7 + 7 = 0.

Front

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

Back

5 + (-5) = 0.

Front

What is the sum of -12 and 12?

Back

-12 + 12 = 0.

Front

What happens when you add two negative numbers?

Back

When you add two negative numbers, the result is a negative number.