Number Ninja
Slice ninja stars by typing their numbers — learn the number row!
⌨️ Keyboard required
This game needs a physical keyboard. For the best experience, play on a laptop, desktop, or tablet with a Bluetooth keyboard. On a phone? Bookmark this page and come back when you're at a computer.
What is Number Ninja?
Number Ninja teaches the top numeric row of the keyboard (1 through 0) using a martial-arts theme. Numbers fly across the screen as targets, and the player chops each one by typing the matching key. The game starts with single digits and progresses to two-digit combinations, which is the closest most typing games get to numeric data entry practice. It is the only game on the site focused entirely on the number row.
How to Play Number Ninja
Skills You'll Practice
Recommended for These Grades
Why this grade range?
Kindergarten and 1st grade is when kids first learn to count and write numbers, and Number Ninja matches that timing for keyboard entry. Most typing curricula skip the number row entirely, which means kids eventually have to learn it the hard way for math homework or video game accounts. Number Ninja front-loads the practice in a low-stakes setting. The two-digit progression at the upper level prepares kids for spreadsheet-style entry, which becomes relevant in 3rd grade and beyond.
Pro Tips for Number Ninja
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1
Reach with the correct finger. 1 is left pinky, 5 is left index, 6 is right index, 0 is right pinky — same finger assignments as the home row.
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2
Don't look at the keyboard. Numbers are far enough from home row that the visual cheat is tempting, but it ruins the muscle memory the game is trying to build.
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3
Practice double digits as a unit — '47' is one chop, not two. Reading two-digit numbers as a chunk is the only way to scale speed.
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4
Run it 10 minutes a week. Numbers are not a daily-practice need; once a week keeps the muscle memory without burning kids out.