Adding & 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. For example, 3.14 is a decimal.

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 0.56 and 2.14?

Back

The sum of 0.56 and 2.14 is 2.70.

Front

What is the difference between 14.35 and 6.73?

Back

The difference between 14.35 and 6.73 is 7.62.

Front

If Julie has 3.2 liters of water and drinks 1.25 liters, how much is left?

Back

Julie has 1.95 liters left.

Front

What is the total cost of $2.50 and $0.35?

Back

The total cost is $2.85.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). For example, 1/2 = 0.5.

Front

What is the value of 0.1 + 0.2?

Back

The value of 0.1 + 0.2 is 0.3.

Front

What is the value of 5.5 - 2.2?

Back

The value of 5.5 - 2.2 is 3.3.