Math 1 minute1 min Free, no account

Missing Equations — number puzzle

Each equation is missing a number: on the left, on the right or after the equals sign. Pick it from four choices. Eight equations, 60 seconds.

Daily challenge: Logic Sequences
  • 8equations
  • 60 soverall timer
  • + −two operations
  • 0accounts needed

How the demo goes

Eight equations, one minute.

  1. 1

    Read the equation

    Additions and subtractions with numbers up to 20. A box marks the missing number.

  2. 2

    Pick the missing number

    Four answers to choose from. Keys 1 to 4 to go faster.

  3. 3

    Beat the clock

    One 60-second timer for everything. Wrong answer? The right one shows briefly.

Score guide

How to read your score.

The number of equations solved out of eight before the timer runs out.

  • 0–2 Try again Find your rhythm, it comes quickly.
  • 3–4 Good math A nice balance of speed and accuracy.
  • 5–7 Super fast The sums flow without a hitch.
  • 8 Flawless Every equation solved.

This is just a taste

In the app, the games go much further.

Play every game in the app
  • Difficulty that adapts to your level
  • Combos, boosters and records
  • Stats and records saved
  • Streaks, badges and leaderboards

The 8 other demos

See the catalog