Count On

Explorer:

• 
  
  • Maths and Magic
  • Patterns
  • Randomiser
  • Number
  • Primes, Factors and Divisibility
  • The Fabulous Fractal Factory
• 
  
  • The Wise Wizz of Woo
  • Diversions
  • Origami
  • Puzzle of the Day
  • Fractions
  • Online Stories

Puzzle of the Day

These puzzles are also printed in Eight days a week, a booklet published by the Association of Teachers of Mathematics.

If you have 7 sticks which measure 1cm, 2cm, 3cm, 4cm, 5cm, 6cm, and 7cm is it possible to make two lines of the same length with them? Can you make four lines of the same length?

Answer: 1+6+7=2+3+4+5 or 1+2+4+7=3+5+6; 1+6=2+5=3+4=7