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Guess My Number

I'm thinking of a number. Guess the middle, cut what's left in half, and find it in the fewest guesses!

Puzzles & Strategy Games · Grades 1–4 · 8 levels · Free

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8 levels

  1. Higher, lower, guess the middle
  2. Guess the middle
  3. Work out what's left
  4. How many are left?
  5. Find the hidden card
  6. How many guesses?
  7. Every guess, no hints
  8. Every guess, timed

What it practises

  • Halving Search (Guess My Number)
  • Counting Halvings

More Puzzles & Strategy Games lessons

Gradeless is free: short math and learning lessons for kids in kindergarten to grade 5, each one starting where your child is. For grown-ups