Maths Tricks Multiplying By 9

Maths Tricks Multiplying By 9

Assessment

Interactive Video

Mathematics, Science

4th Grade - University

Hard

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This video tutorial introduces three math tricks to simplify multiplying numbers by 9. It begins with the hand trick, which uses fingers to multiply numbers 1-10 by 9. Next, it explains a pattern observation trick for single-digit numbers, highlighting a consistent pattern in results. Finally, a general multiplication trick is presented for any number, involving multiplication by 10 and subtraction. The video concludes with practice questions to reinforce learning.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the first trick introduced for multiplying by 9?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you perform the hand trick for multiplying 9 by a number?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the result of 6 multiplied by 9 using the hand trick?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What pattern is observed when multiplying single digit numbers by 9?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How can you perform the multiplication of 7 by 9 using the second trick?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the steps to multiply any number by 9 using the final trick.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the final answer when multiplying 15 by 9?

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