Finger Multiplication Trick

This video tutorial introduces a hand trick for multiplying numbers by nine. The instructor demonstrates the technique using examples like nine times two, three, seven, eight, ten, and four. The method involves counting fingers to the left and right of the bent finger to determine the tens and ones digits of the product. The video concludes with a call to action to subscribe and share the content.

What is the main concept introduced in the video?

• Using fingers to multiply by nine

• Using a multiplication table

• Using a calculator for multiplication

• Using a computer program

How many fingers should be to the left when multiplying 9 by 2 using the finger trick?

• Two fingers

• One finger

• Three fingers

• Four fingers

What is the result of 9 times 3 using the finger trick?

• 18

• 45

• 27

• 36

When using the finger trick, how many fingers are to the left for 9 times 7?

• Six fingers

• Four fingers

• Seven fingers

• Five fingers

What is the result of 9 times 8 using the finger trick?

• 72

• 81

• 90

• 64

How many fingers are to the left when calculating 9 times 10 using the finger trick?

• Ten fingers

• Nine fingers

• Eight fingers

• Seven fingers

What is the result of 9 times 4 using the finger trick?

• 40

• 36

• 32

• 44

What does the video encourage viewers to do at the end?

• Practice more problems

• Buy a math book

• Subscribe and share

• Watch another video