Learning Made Fun

Cool Math Trick . . . Where your answer will be 37!

2/22/2017

There's something about math tricks that just make math more interesting to kids. I find it a great sneaky way to add in that extra bit of math in a day without the groans!

Here is another cool math trick that I would like to share, it's one where your answer will always be 37! Of course, if the calculations are done correctly. If the answer is not 37, then a mistake has happened somewhere along the way.

Step 1: Think of a three digit number where all of the digits are the same, e.g. 111, 222, 333, 444.

For example I'm going to choose 777.

Step 2: Add the three digits together

For my example (777) 7 + 7 + 7 = 21

Step 3: Divide the number that you came up with in Step 1 by the result you ended up with in Step 2.
(So Long Division Skills are needed here. For younger students you may wish to allow them to use a calculator if this is too difficult.)

For my example . . . 777 divided by 21

which EQUALS 37!

If you like math tricks, you can find more on my website, just . . .
CLICK HERE for more Cool Math Tricks!

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0 Comments

Cool Math Trick - Where your Answer is Always 2!

12/29/2016

3 Comments

Here's another cool math trick to teach your kids! Get them to try it with lots of different numbers to sneak in some extra math practice, whilst amazing them that the answer is always 2!

If the answer isn't 2, then a calculation mistake was made and so needs to be redone. You could get your students to show the math on a piece of paper to check.

A fun and challenging activity that you could give your students is to get them to try and explain how and why this trick works.

Example of using this trick:

Step 1: I choose 7
Step 2: Multiply by 3 = 21
Step 3: Add 6 = 27
Step 4: Divide by 3 = 9
Step 5: 9 - 7
= 2

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3 Comments

Cool Math Trick!

10/26/2016

2 Comments

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Here's another cool math trick to teach your kids! Get them to try it with lots of different numbers to sneak in some extra math practice, whilst amazing them that the answer is always 5!

If the answer isn't 5, then a calculation mistake was made and so needs to be redone. You could get your students to show the math on a piece of paper to check.

A fun and challenging activity that you could give your students is to get them to try and explain how this trick works.

Example of using this trick:

Step 1: I choose 100
Step 2: Double it = 200
Step 3: Add 10 = 210
Step 4: Halve it = 105
Step 5: 105 - (100)
= 5

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Cool Math Trick . . . Where your answer will be 37!

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