Maths Tricks Part One

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-based trick for single-digit numbers, highlighting the relationship with the hand trick. Finally, a general trick for multiplying any number by 9 is demonstrated. The video concludes with practice questions to reinforce learning.

What is the result of using the hand trick to multiply 9 by 7?

• 63

• 54

• 72

• 81

When using the pattern-based trick, what is the first step to multiply 8 by 9?

• Multiply the number by 10

• Divide the number by 2

• Add 1 to the number

• Subtract 1 from the number

Using the pattern-based trick, what is the result of 9 multiplied by 5?

• 36

• 63

• 54

• 45

In the general trick for multiplying any number by 9, what is the second step after multiplying the number by 10?

• Multiply by 9

• Subtract the original number

• Add the original number

• Divide by 10

What is the result of 15 multiplied by 9 using the general trick?

• 125

• 145

• 150

• 135

Which method would you use to quickly find the product of 9 and 3?

• None of the above

• Pattern-based trick

• Hand trick

• General trick

What should you do after watching the video to improve your multiplication skills?

• Practice the methods

• Memorize the tricks

• Watch another video

• Ignore the video