Fun with mathematics
Calendar Magic 153
Slide1
Total 153!
This Mathematics activity gives you interest to do the fundamental operations. (+, -, x, /)
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FUN ACTIVITY – Total 153!
Ask a friend to choose any 3 x 3 grid on a calendar month and draw a box around it.
Tell your friend that you can instantly give the total of all the nine numbers in the box.
How ???????
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How ????
Answer is 153
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FUN ACTIVITY - solutions
Take the smallest number in the square and add 8 to it. In this example, 9 + 8 = 17
Multiply that answer by nine.
So 17 x 9 = 153
Ask your numbers friend to check
by actually taking the total of all nine numbers.
9 + 10 + 11 + 16 + 17 + 18+ 23 + 24 + 25 = 153
Slide6
Try this out with another box of nine numbers.
This works for any month of any year.
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