Ages 8–10

Missing Number to 100

Solve equations with an unknown value.

PlayMissing Number to 100Adaptive difficulty · 2/3
Level1/10
Correct0
Mistakes0
Tasks0/5
Today in this game00:00 / 20:00Maximum 20 minutes per day for one game

Timed challenge

Complete 5 rounds as fast as you can. Time is measured by the server.

Personal best: —

Please do not use a surname, phone number, or other personal information. Online rankings — coming soon

0/500:00.0Regular play — this result is not being recorded

Leaderboard

Each player’s best time for the selected age group.

RankPlayerTimeMedalLanguage
No scores yet — you can be first.

How to play

Choose the value that makes the equation true.

Skills

Mental arithmetic and inverse operations.

The game starts instantly and does not require an account.

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