Multiplication of Decimal Numbers

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Tags

CCSS.3.OA.A.1

Front

What is a decimal number?

Back

A decimal number is a number that has a whole part and a fractional part, separated by a decimal point. For example, 2.5 is a decimal number where 2 is the whole part and 5 is the fractional part.

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, then place the decimal point in the product based on the number of decimal places in the decimal.

Tags

CCSS.5.NBT.B.7

Front

What is the product of 0.5 and 2?

Back

0.5 x 2 = 1.0.

Tags

CCSS.5.NBT.B.7

Front

What is the product of 0.75 and 4?

Back

0.75 x 4 = 3.0.

Tags

CCSS.6.NS.B.3

Front

How do you multiply two decimal numbers?

Back

Multiply the numbers 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.

Tags

CCSS.5.NBT.B.7

Front

What is 0.2 x 0.3?

Back

0.2 x 0.3 = 0.06.

Tags

CCSS.6.NS.B.3

Front

What is 0.6 x 0.5?

Back

0.6 x 0.5 = 0.30.

Tags

CCSS.6.NS.B.3

Front

If a box costs 10.75 pesos, how much do 12 boxes cost?

Back

12 x 10.75 = 129 pesos.

Tags

CCSS.5.NBT.B.7

Front

If a steak weighs 1.4 kg and costs 4.50 per kg, how much does it cost?

Back

1.4 x 4.50 = 6.30.

Tags

CCSS.6.NS.B.3