Multiplication with decimals

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 x 4 means adding 3 four times (3 + 3 + 3 + 3).

Tags

CCSS.3.OA.A.1

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 finding a part of the whole number. For example, 0.5 x 4 means finding half of 4, which is 2.

Tags

CCSS.5.NBT.B.7

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 in the product accordingly.

Tags

CCSS.6.NS.B.3

Front

What is the product of 0.2 and 0.4?

Back

0.2 x 0.4 = 0.08.

Tags

CCSS.6.NS.B.3

Front

What is the product of 32.1 and 9?

Back

32.1 x 9 = 288.9.

Tags

CCSS.6.NS.B.3

Front

If Nathan earns $1.75 each week, how much does he earn in 4 weeks?

Back

$1.75 x 4 = $7.

Tags

CCSS.7.EE.B.3

Front

What is the value of 3 x 0.14?

Back

3 x 0.14 = 0.42.

Tags

CCSS.5.NBT.B.7

Front

What does the decimal point represent in a number?

Back

The decimal point separates the whole number part from the fractional part of a number. For example, in 2.5, 2 is the whole number and 0.5 is the fraction.

Tags

CCSS.5.NBT.A.3A

Front

How do you write 0.6 as a fraction?

Back

0.6 can be written as 6/10, which simplifies to 3/5.

Front

What is the relationship between multiplication and addition?

Back

Multiplication is repeated addition. For example, 4 x 3 is the same as 4 + 4 + 4.

Tags

CCSS.3.OA.A.1