Free Mental Math Games for Adults

If your arithmetic is rusty, these puzzles are a friendly workout. They go beyond flash cards: you combine numbers, spot patterns and plan ahead. None needs more than basic arithmetic, but all of them reward cleverness.

1. 1

   Target 24

   Combine four numbers with + − × ÷ to reach exactly 24.

   Play Target 24 free →
2. 2

   Equation Scramble

   Build an equation from tiles that hits a target value.

   Play Equation Scramble free →
3. 3

   Prime Hunt

   Spot primes fast and avoid composites.

   Play Prime Hunt free →
4. 4

   Grid Sums

   Fill a grid so every row and column matches its sum clue.

   Play Grid Sums free →
5. 5

   Digit Drop

   Clear groups of blocks that add up to the target.

   Play Digit Drop free →
6. 6

   Balance Scale

   Split weights evenly between two pans.

   Play Balance Scale free →
7. 7

   Number Chain

   Connect numbers in order across the grid.

   Play Number Chain free →

Tips

• Break big numbers into friendly ones (47 + 38 is 50 + 35).
• Learn the primes under 50. It speeds up several puzzles.
• Work backwards from the target when a puzzle stalls.
• Do a few puzzles a day. Short, regular practice beats one long session.

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