Understanding Division and Decimal Movement

The video tutorial explains how to divide decimal numbers by 10, 100, and 1000 by moving the decimal point to the left. It contrasts this with multiplication, where the decimal point moves to the right. The tutorial provides several examples, such as dividing 47 by 10, 250 by 100, 3.45 by 10, and 0.72 by 100, to illustrate the concept. The video concludes with a reminder to check that the result is smaller than the original number and encourages viewers to practice on the website.

What happens to the decimal point when you divide a number by 10?

• It moves one place to the right.

• It moves one place to the left.

• It stays in the same position.

• It disappears.

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CCSS.5.NBT.A.2

How many places does the decimal point move when dividing by 100?

• One place to the right

• Two places to the right

• Two places to the left

• Three places to the right

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CCSS.3.OA.C.7

What is the relationship between division and multiplication?

• They both increase the number.

• They both move the decimal point to the right.

• Division is the inverse of multiplication.

• They are unrelated.

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CCSS.5.NBT.A.2

When dividing 47 by 10, what is the result?

• 470

• 0.47

• 47.0

• 4.7

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CCSS.5.NBT.B.7

What is the result of dividing 250 by 100?

• 2.5

• 25.0

• 0.25

• 2500

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CCSS.5.NBT.A.2

Why can the zero be removed in the result of 2.50?

• It changes the value.

• It is unnecessary.

• It is a placeholder.

• It is incorrect.

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CCSS.5.NBT.A.2

What is the result of dividing 3.45 by 10?

• 0.0345

• 34.5

• 3.45

• 0.345

Tags

CCSS.5.NBT.A.2

When dividing 0.72 by 100, what is the correct result?

• 0.072

• 0.0072

• 7.2

• 72

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CCSS.5.NBT.B.6

CCSS.6.NS.B.2

Why is it important to check your answer after dividing?

• To ensure the answer is larger than the dividend.

• To ensure the answer is smaller than the dividend.

• To ensure the decimal point is on the right.

• To ensure the number is whole.

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CCSS.5.NBT.B.7

What should you do if your division result seems incorrect?

• Move the decimal point to the right.

• Recheck the direction of the decimal point movement.

• Add more zeros.

• Multiply instead.

Tags

CCSS.5.NBT.B.7