Category Archives: Math Magic

Math magic, math magician, mathemagic tricks. Math-based magic

Learn Magic - Lost at Sea - magic square

Learn Magic: Lost at Sea

March is Pi Day.  Here’s a fun math trick to amaze your friends! Ready to learn to perform this?  Remember:  Please don’t reveal the secret! Download your Lost at Sea Sheet.  Two versions are enclosed:  one with smaller numbers, and a challenge version with larger ones.  This trick uses a magic square.  Although there are lots of varied numbers, and even different row and

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magic puzzle stamp conundrum

Stamp Puzzler: You Won’t Believe This One!

I have a problem. I have 4 rows of 3 stamps, as you see in the picture.  However, my stamp album only has room for 3 rows of 4 stamps.  Life is challenging at times, isn’t it!  Can you make 1 continuous tear along the perforations so theses stamps will fit in the album? 

Math Puzzle - Sum Equals Product

Product = Sum? You Must be Kidding!

What is the only 2-digit number where the product of its digits equals the sum of its digits? E.g. could it be 37?  3×7=21.  3+7=10.  These don’t match, so it’s not 37.  What is it then? 

Learn Magic - Add 10 Consecutive Numbers

Learn Magic: Lightning Add 10 Consecutive Numbers!

Back in school, you’ll drop some jaws with this one!

Math Puzzle - Largest Number with 2 Digits

What is the largest number that can be made with 2 digits?

This one is trickier than you think!

Math Puzzle - Coin Change for a $1

Can You Make Change for $1–in 10 Different Ways?

Can you make 1 coin equal $1? Can you make 2 coins equal $1? 3 coins?  4?  Etc. up to 10 coins equaling $1? 

Magic Puzzle - Amoebas Multiplying

Amazing Amoebas

Amoebas are small organisms that reproduce rapidly.  They double every minute.  In 1 hour they filled half a bottle.  How long will it take to fill the whole bottle? 

Learn Magic - Bermuda Square Triangle

Learn Magic: Beware the Bermuda Triangle!

Vanish a raft in this map of the Bermuda Triangle!

Magic Puzzle - Make 100 with Four 9s

Sept is the 9th Month. Can You Make 100 with Four 9’s?

You can combine the 9’s however you wish, and use whatever arithmetic symbols you’d like–+, -, x, /.  Any ideas?

Math Puzzle - Arrange Five Six's

Can You Arrange Five 6’s so They Equal 19?

You can put the 6’s together however you’d like.  And you can use whatever arithmetic symbols you want:  +, -, x, or /.  Tough one, eh?