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10 Make the Sum

How can you add up numbers without seeing them? Find out with this trick!

The spectator creates a random sequence of 10 numbers and the magician manages to find their sum without peeking! How is that possible?

How does the magician make a seemingly difficult calculation look so easy? Obviously, it must be some sort of math trick… A special way of multiplying or adding maybe? Have fun exploring arithmetic magic!

  • This trick is ideal for honing mental calculation skills (addition and multiplication). This trick can be presented in different ways and can both be done with the whole class or in teams.

  • Planning notes