5th - Decimal Multiplication

Front

What is decimal multiplication?

Back

Decimal multiplication is the process of multiplying numbers that have decimal points. It involves aligning the numbers, ignoring the decimal points during multiplication, and then placing the decimal point in the product based on the total number of decimal places in the factors.

Tags

CCSS.6.NS.B.3

Front

How do you multiply decimals?

Back

To multiply decimals, multiply the numbers as if they were whole numbers. Count the total number of decimal places in both numbers, and then place the decimal point in the product so that it has the same number of decimal places.

Tags

CCSS.6.NS.B.3

Front

What is the product of 2.5 and 6.7?

Back

6.675

Tags

CCSS.6.NS.B.3

Front

What is the product of 1.2 and 2.1?

Back

2.52

Tags

CCSS.6.NS.B.3

Front

What is the product of 0.18 and 2.0?

Back

0.36

Tags

CCSS.6.NS.B.3

Front

What is the product of 0.3 and 0.5?

Back

0.15

Tags

CCSS.6.NS.B.3

Front

What is the product of 29 and 0.14?

Back

4.06

Tags

CCSS.6.NS.B.3

Front

What is the importance of decimal places in multiplication?

Back

Decimal places indicate the precision of a number. In multiplication, the total number of decimal places in the factors determines where the decimal point is placed in the product.

Tags

CCSS.5.NBT.B.7

Front

What happens if you multiply a decimal by 10?

Back

When you multiply a decimal by 10, the decimal point moves one place to the right, increasing the value of the number.

Tags

CCSS.5.NBT.A.2

Front

What happens if you multiply a decimal by 0.1?

Back

When you multiply a decimal by 0.1, the decimal point moves one place to the left, decreasing the value of the number.

Tags

CCSS.5.NBT.A.2