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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.

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How do you add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

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What is the process of subtracting rational numbers?

Back

To subtract rational numbers, you can change the subtraction to addition by adding the opposite (negative) of the second number.

Front

What does 'keep, change, flip' mean in relation to subtraction?

Back

'Keep, change, flip' is a method used to rewrite a subtraction problem as an addition problem by keeping the first number, changing the subtraction to addition, and flipping the second number to its reciprocal.

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Front

How do you find the total change in yardage when a team loses and then gains yards?

Back

Subtract the total lost yards from the total gained yards to find the overall change.

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Back

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Convert both mixed numbers to improper fractions, then subtract the lost yards from the gained yards.

Front

What is the balance in an account after spending more than what is available?

Back

The balance will be negative, indicating an overdraft.