Multiplying Decimals
Dividing Decimals
Steps
Adding or Subtracting
Real World
100

 5.73

x 0.5

2.865

100

  28.38

÷6

4.73

100

When dividing decimals by decimals, you have to make sure the divisor is a what?

make the divisor a whole number

100

81.33 + 37.49

118.82

100

12 poster boards for $25

What is the unit price for the poster board?

$2.08

200

  0.40

x 0.2

0.08

200

  76.54

÷ 4

19.135

200

When adding or subtracting decimals, what do you have to be sure to do when setting up your problem? 

line up the decimals

200

53.60 + 60.79

114.39

200

When dividing decimals by decimals, you have to make sure the divisor is a what?

whole number

300

    8.42

x   6.0


50.52
300

  64.4

÷.5

128.8

300

How do you know where to place your decimal in the answer of a multiplication problem?

Count the decimal places in each factor, add them together, and then place the decimal in the answer so that you have the same number of decimal places as in both factors.

300

0.94 - 0.49

0.45

300

What is the area of a tennis court with a length of 23.77 m and a baseline of 10.97 m?

260.76 square meters

400

     7.4

x   5.3

39.22

400

  36.7

÷ .8

45.875

400

Where do you place the decimal in the answer to a division problem? 

Bring the decimal point up

400

0.76 - 0.59

0.17

400

A teacher is 5.5 feet tall without shoes. She wears shoes with a heel that measures 0.16 of a foot. How tall is she with her shoes on? 

5.66 feet

500

  67.45

x 23.74

1601.263

500

  50.4

÷ .07

720

500

What is the first step to multiplying decimals?

Set up your problem with the numbers aligned to the right.

500

6.14 - 2.58

3.56

500

A child makes a smoothie using 1.25 bananas for breakfast, eats 0.6 of a banana for lunch, and for dinner has 1.3 of another banana. How many bananas did the child eat?

3.15 bananas

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