Rational Number Operation Review

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 result of adding a negative number to a positive number?

Back

The result will be less than the positive number, depending on the absolute values of the numbers.

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 result of (3.5) - (-2.3)?

Back

5.8

Front

If you pay $10 for an item that costs $6.75, how do you find the change?

Back

Subtract the cost from the amount paid: $10 - $6.75 = $3.25.

Front

What is another way to write - (-44)?

Back

44

Front

How do you find the total change in position when moving up and down?

Back

Add the upward movements and subtract the downward movements to find the net change.

Front

An elevator went up 15 floors, down 9 floors, up 11 floors, and down 19 floors. What is the final position?

Back

Down 2 floors.

Front

What is the result of -2 ⅙ - (-1 ¾)?

Back

-5/12.

Front

What does it mean to simplify a fraction?

Back

To simplify a fraction means to reduce it to its lowest terms by dividing the numerator and denominator by their greatest common divisor.