Zetamac
A fast-paced arithmetic drill. Solve as many problems as you can before the clock runs out — answers advance the moment you type them.
Normal mode
Seconds left: –
Score: 0
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Time’s up
Score: 0
Practice
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Practice mode learns what you get stuck on — broken down by operation (+ − × ÷) and digit size (1–3 digits) — and builds each session around your weak spots. Sign in so your progress follows you.
First, a quick diagnostic: four 45-second games, one per operation, each mixing 1-, 2-, and 3-digit problems. It maps your baseline so practice can target what’s actually slow.
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Skills
Today’s session
Focused drill
Session recap
1v1
Create a room and share the code, or join a friend’s. Both of you race the same problems — first correct answer takes the point.
Create a room
operations, ranges & duration
Range: ( to ) + ( to )
Addition problems in reverse.
Range: ( to ) × ( to )
Multiplication problems in reverse.
Join a room
Room
Waiting for an opponent… share the code above, or send them the link.