Dividing Decimals: Techniques and Strategies

This video tutorial covers dividing decimals with decimal divisors by using powers of 10 to simplify the process. It explains how multiplying both the divisor and dividend by the same power of 10 can make the divisor a whole number, keeping the quotient unchanged. The tutorial provides examples, discusses the role of exponents, and demonstrates practical applications. It also includes problem-solving exercises and concludes with a summary and introduction to the next lesson.

What is the first step when dividing a decimal by another decimal?

• Add the divisor to the dividend

• Multiply the divisor by 100

• Subtract the divisor from the dividend

• Multiply both the divisor and dividend by the same power of 10

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CCSS.5.NBT.B.7

If you have 8 divided by 4, what is the quotient?

• 8

• 4

• 2

• 1

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CCSS.3.OA.B.6

What does 10 to the second power represent?

• 1

• 10

• 100

• 1000

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CCSS.6.EE.A.1

When dividing 3.6 by 0.9, what is the quotient?

• 3

• 2

• 5

• 4

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CCSS.6.NS.B.3

How many hops to the right are needed to make 0.42 a whole number?

• 1

• 2

• 3

• 4

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CCSS.5.NBT.A.2

In the word problem, how many bananas did Emma buy if she spent $1.44 and each banana costs $0.24?

• 6

• 5

• 4

• 7

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CCSS.6.NS.B.3

How many oranges did Emma buy if she spent $4.34 and each orange costs $0.62?

• 7

• 6

• 8

• 9

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CCSS.7.EE.B.3

What is the total number of items Emma bought from Mr. Lee's store?

• 13

• 12

• 11

• 10

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CCSS.1.NBT.A.1

How many boxes can Mrs. Kim fill if she has 11.34 pounds of cookies and each box holds 0.81 pounds?

• 12

• 13

• 14

• 15

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CCSS.6.NS.B.3

What is a common mistake students make when doing math?

• Adding instead of dividing

• Not subtracting correctly

• Forgetting to multiply

• Getting place values mixed up

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CCSS.5.NBT.B.7