Multiplication with decimals

Front

What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 multiplied by 4 (3 x 4) is the same as adding 3 four times (3 + 3 + 3 + 3 = 12).

Front

What does it mean to multiply a decimal by a whole number?

Back

When you multiply a decimal by a whole number, you are scaling the decimal by that whole number. For example, 0.5 x 4 means you have 4 groups of 0.5, which equals 2.

Front

How do you multiply two decimals?

Back

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

Front

What is the product of 3.1 and 6?

Back

18.6

Front

What is 0.7 multiplied by 0.5?

Back

0.35

Front

What is the result of multiplying 2.1 by 4.5?

Back

9.45

Front

What is 63.9 multiplied by 7?

Back

447.3

Front

What is 3.6 multiplied by 0.1?

Back

0.36

Front

What is the rule for placing the decimal point in multiplication?

Back

Count the total number of decimal places in both factors. The product should have the same number of decimal places.

Front

If you multiply a decimal by 10, what happens to the decimal point?

Back

The decimal point moves one place to the right. For example, 0.5 x 10 = 5.