Multiplying with 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, represented with a decimal point.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal point, then place the decimal point in the product based on the number of decimal places in the original decimal.

Tags

CCSS.5.NBT.B.7

Front

What is the product of 0.4 and 1000?

Back

The product of 0.4 and 1000 is 400.

Tags

CCSS.5.NBT.A.2

Front

What is the result of multiplying 0.9 by 10000?

Back

The result of multiplying 0.9 by 10000 is 9000.

Tags

CCSS.5.NBT.A.2

Front

How do you determine the placement of the decimal point in a product?

Back

The placement of the decimal point in a product is determined by counting the total number of decimal places in the factors being multiplied.

Tags

CCSS.6.NS.B.3

Front

What is the result of multiplying 0.2 by 10?

Back

The result of multiplying 0.2 by 10 is 2.

Tags

CCSS.5.NBT.A.2

Front

What is the product of 0.5 and 4?

Back

The product of 0.5 and 4 is 2.

Tags

CCSS.5.NBT.B.7

Front

How do you multiply two decimals?

Back

To multiply two decimals, multiply them as if they were whole numbers, then place the decimal point in the product by counting the total number of decimal places in both factors.

Tags

CCSS.6.NS.B.3

Front

What is the product of 0.8 and 5?

Back

The product of 0.8 and 5 is 4.

Tags

CCSS.6.NS.B.3

Front

What is the significance of multiplying by powers of ten?

Back

Multiplying by powers of ten shifts the decimal point to the right, increasing the value of the decimal.

Tags

CCSS.5.NBT.A.2