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 is the sum of 0.5 and 0.25?

Back

0.75

Front

If Jimmy has $20, spends $13, receives $2, spends $4, and spends $5, how much does he have left?

Back

0 dollars

Front

What is the sum of a number and its opposite?

Back

Zero.

Front

Which expression can be used to find the distance between -2 and 6?

Back

|-2 - 6|

Front

What is the additive inverse of 5?

Back

-5

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the number that, when added to the original number, results in zero.

Front

How do you add two rational numbers with different denominators?

Back

Find a common denominator, convert the fractions, and then add the numerators.

Front

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

Back

The result can be positive, negative, or zero, depending on the values of the numbers.

Front

What is the distance formula for two numbers on a number line?

Back

The distance between two numbers a and b is given by |a - b|.