How to play

Choose how you want to play, answer the math questions, and try to beat your own best score. SumNinja saves progress for each player.

Look at the question in the middle of the screen.
Type the answer and press Enter. In Speed, each question has its own timer. In Accuracy, the first wrong digit ends the round.
After each round, SumNinja updates your stats and chooses questions that fit your level.

Play together

Players

Add a player for each person. A player has a name, emoji, color, settings, stats, and history.

Multiplayer

Choose Multiplayer to take turns on the same device. Everyone gets timed turns. The player with the most correct answers wins.

Import / export

Export a SumNinja file when you want to move a player to another device. Send the file with email, a cloud drive, AirDrop, USB, or similar. Import it on the other device to add that player or update the same player there. This is also useful before Multiplayer, so each player can bring their own level and history.

Read the full guide

Keyboard shortcuts

Start

1 Play fast
2 Play accurate
3 Open Multiplayer
T Open Start
E Open Settings

During a round

Enter Submit your answer
Space Focus the answer box
S Skip a question in Multiplayer
Esc Finish the round

Stats

S Open overview
P Open performance
M Open achievements
A Open history

After a round

Enter Play again
S See more stats
H Open this guide