Decimal Operations

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form, where the denominator is a power of ten, represented with a decimal point.

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 product of 4.5 and 3?

Back

The product of 4.5 and 3 is 13.5.

Front

What is the quotient of 10.5 divided by 0.5?

Back

The quotient of 10.5 divided by 0.5 is 21.

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both factors and place the decimal point in the product accordingly.

Front

What is the value of 0.3 + 0.7?

Back

The value of 0.3 + 0.7 is 1.0.

Front

What is the value of 18 - 0.4?

Back

The value of 18 - 0.4 is 17.6.

Front

What is the product of 5.2 and 0.3?

Back

The product of 5.2 and 0.3 is 1.56.

Front

What is the value of 2531 ÷ 40?

Back

The value of 2531 ÷ 40 is 63 11/40.