Puzzles and Riddles

Learning Goals:

  • Determine the missing numbers in equations
  • Develop and apply reasoning skills to make and test math predictions

The Challenge:

The goal of a magic triangle is to place the numbers from 1-6 in the spaces, so that the three sides each add up to the target total:

 


Can you place the numbers 1-6 into the triangle so that each side adds to 10?
What about a target total of 12 for each side? A target total of 9? 11?

This digital version is a great way to play, or simply jot it down on a piece of paper!

Questions and Prompts to Support your Child:

  • What strategy did you use to add the numbers quickly?
  • What have you tried so far? What could we try together?
  • If that arrangement of numbers didn’t work out, what could you try instead?

Extensions & Adaptations:

  • If struggling with calculations, have a calculator handy!
  • Increasing the size of the triangle allows for the use of more digits and a trickier puzzle – Check out This Open Middle version for an added challenge.