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Dividing Decimals by Decimals

Dividing Decimals by Decimals

Assessment

Presentation

Mathematics

5th Grade

Medium

CCSS
5.NBT.B.7, 5.NBT.B.6, 6.NS.B.2

Standards-aligned

Created by

Rebecca Tuttle

Used 492+ times

FREE Resource

3 Slides • 6 Questions

1

Dividing Decimals by Decimals

Step by step

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2

 9.96 ÷ 1.29.96\ \div\ 1.2  

First, write this division sentence with a frame, like the picture shows.

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3

Fill in the Blank

Step 1: Move the decimal point in the divisor to make a whole number.


How many places do you need to move the decimal point in 1.2 to make it a whole number?

4

Multiple Choice

Step 2: Move the decimal point in the dividend the same number of places.


After you have moved the decimal points, what should your division problem be now?

1

9.96 ÷ 1.29.96\ \div\ 1.2

2

99.6 ÷ 1299.6\ \div\ 12

3

9.96 ÷ 129.96\ \div\ 12

4

99.6 ÷ 1.299.6\ \div\ 1.2

5

Step 3: Move the decimal point straight up and place it in the quotient.

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6

Multiple Choice

Step 4: Divide. Since we cannot divide 9 by 12, we'll have to divide 99 by 12.


How many times does 12 go into 99? Or, 12 x ? will get us close to 99?

1

6

2

7

3

8

4

9

7

Multiple Choice

Question image

Steps 5, 6 and 7: Multiply, subtract, then bring down the 6.


How many times does 12 go into 36, or 12 x ? equals 36?

1

3

2

4

3

5

4

1

8

Multiple Choice

Steps 8 and 9: Multiply and subtract, then you're done!


What is the final answer?

1

8.3

2

0.83

3

83

4

.083

9

Fill in the Blank

Now, try this problem on your own:

 1.47 ÷ 2.11.47\ \div\ 2.1  

What is your answer?

Dividing Decimals by Decimals

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