Multiplying Decimals by Powers of Ten (Part2)

Multiplying Decimals by Powers of Ten (Part2)

Assessment

Interactive Video

Mathematics

4th - 6th Grade

Hard

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The video tutorial explains how to multiply decimal numbers by powers of 10. It demonstrates the process by showing how multiplying 1.25 by 10^2 results in 125, and multiplying by 10^3 results in 1250. The general rule is to move the decimal point to the right as many places as the power of 10. If there are not enough digits, zeros are added as placeholders. Examples are provided to illustrate these concepts.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What happens to each digit in a number when it is multiplied by 10 to the power of 2?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

In the example of multiplying 1.25 by 10 to the power of 3, how many places does the decimal point move?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What do you need to add as a placeholder when the decimal point moves beyond the original number?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the general rule for multiplying decimals by powers of 10.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the number of places to move the decimal point when multiplying by 100?

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