adding and subtracting decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten. It is used to represent numbers that are not whole numbers.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What is the sum of 2.5 and 3.7?

Back

6.2

Front

What is the difference between 5.6 and 2.3?

Back

3.3

Front

If a shirt costs $19.99 and you have $50, how much money will you have left after buying the shirt?

Back

$30.01

Front

What is 0.75 + 0.25?

Back

1.00

Front

What is 10.5 - 4.2?

Back

6.3

Front

How do you round 3.678 to the nearest hundredth?

Back

3.68

Front

What is the total cost of 3 items priced at $2.50 each?

Back

$7.50