Multiplying and Dividing Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (decimal point) separating the whole number from the fractional part.

Front

How do you multiply decimals?

Back

To multiply decimals, 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.6.NS.B.3

Front

What is the rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places and divide as usual.

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Front

Calculate: 5.75 ÷ 0.25

Back

23

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CCSS.6.NS.B.3

Front

What is the total cost if you buy 5 shirts at $6.15 each and 1 pair of shoes at $13.45?

Back

$44.20

Tags

CCSS.7.EE.B.3

Front

If Mina has 1/2 of a bag of popcorn and eats half of it, how much does she have left?

Back

1/4 of a bag

Tags

CCSS.5.NF.B.6

Front

How much does Frank’s mother spend on 6 pounds of apples at $0.85 per pound and 4 pounds of peaches at $1.55 per pound?

Back

$11.30

Tags

CCSS.7.EE.B.3

Front

Calculate the total cost for 6 adult tickets at $8.50 each and 12 child tickets at $4.25 each.

Back

$102.00

Tags

CCSS.7.EE.B.3

Front

What is the first step in multiplying decimals?

Back

Align the numbers vertically by the decimal point and ignore the decimal points for the multiplication.

Tags

CCSS.5.NBT.B.7

Front

What do you do after multiplying decimals?

Back

Count the total number of decimal places in both factors and place the decimal point in the product.

Tags

CCSS.5.NBT.B.7