Adding and subtracting decimals

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

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 does the digit after the decimal point represent?

Back

The digit after the decimal point represents tenths, hundredths, thousandths, etc., depending on its position.

Front

What is the value of 0.5 in terms of fractions?

Back

0.5 is equivalent to 1/2.

Front

If you have 3.25 and you add 2.75, what is the result?

Back

The result is 6.00.

Front

What is the process to find change when making a purchase?

Back

To find change, subtract the total cost from the amount given.

Front

If a recipe calls for 1.5 cups of sugar and you want to double it, how much sugar do you need?

Back

You need 3.0 cups of sugar.

Front

What is the sum of 4.2 and 5.8?

Back

The sum is 10.0.

Front

What does the 7 in the decimal 0.47 represent?

Back

The 7 represents seven hundredths.