Mohammad Modassir Mushtaque
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Posted 5 year ago
MATHS MAGIC

Impress students with your mind-reading maths.

1. Write the number 9 on a piece of paper, fold it, and give it to your students telling them not to look at it.
2. Give your students a calculator and ask them to:
Put in their age and add the number of their house.
Add the last four digits of their phone number
Multiply the result by 18
Add the digits of the answer together. If the answer has more than one digit, keep adding the digits until they only have one left.
3. Tell your students to look at the piece of paper and watch their amazement. The answer is always 9.
3 Answer(s)
Lalit Patel
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Posted 5 year ago Lalit Patel

Because after multiply by 18 it always divisible by 9. yaa it can be a fun game

Chandni Dabral
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Posted 5 year ago Chandni Dabral

Yes I did this with my students.

Arvind Ashok kadam
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Posted 4 year ago Arvind Ashok kadam

Yes I did this with my students.

 

 

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