Decimal Division Techniques with Area Models

The video tutorial covers decimal division using area models and long division. It begins with an introduction to the concept, followed by two examples: dividing 3.2 by 4 and dividing 2 by 0.25. Each example is explained using both area models and the long division algorithm. The video concludes with a practice problem, dividing 7.5 by 1.5, allowing viewers to apply the learned techniques.

What is the result of dividing 3.2 by 4 using an area model?

• 32 tenths

• 4 wholes

• 8 tenths

• 0.8

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CCSS.4.NBT.B.5

How many tenths are there in 3.2?

• 3 wholes and 2 tenths

• 32 tenths

• 12 tenths

• 20 tenths

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CCSS.1.NBT.B.2B

CCSS.1.NBT.B.2C

How do we adjust the division problem when the divisor is a decimal?

• Ignore the decimal point

• Multiply both numbers by 10

• Divide as usual without adjustments

• Move the decimal in the divisor to the right

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CCSS.5.NBT.B.6

CCSS.6.NS.B.2

What is the result of dividing 2 by 0.25 using long division?

• 80

• 8

• 0.8

• 800

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CCSS.5.NBT.B.7

How many groups of 0.25 are in 2?

• 0.08 groups

• 8 groups

• 25 groups

• 2 groups

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CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

What is the first step in dividing when the divisor is a decimal?

• Multiply the divisor by 100

• Subtract the divisor from the dividend

• Move the decimal point in the divisor to make it a whole number

• Add zeros to the dividend

What is the equivalent of 2 wholes in terms of twenty-five hundredths?

• 800

• 8

• 25

• 200

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CCSS.4.NF.C.6

When dividing decimals, what do we do with the decimal point in the dividend?

• Move it to the right

• Move it to match the divisor's movement

• Leave it as is

• Erase it

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CCSS.6.NS.B.3

How many times does 1.5 fit into 7.5?

• 5 times

• 10 times

• 7.5 times

• 1.5 times

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CCSS.5.NBT.B.7

In the practice problem, how is the last group of 1.5 formed from 7.5?

• Using a whole and a half

• Splitting a whole into tenths

• It is not formed; it's an error

• Combining two wholes

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CCSS.5.NBT.A.2