Fractions, decimals, multiplication and fun word problems for every level.
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Belt System
Earn XP and level up your belt — White → Yellow → Black.
🔥
Streak Bonuses
5 in a row = bonus XP. Stay sharp, stay focused, become a master.
📊
No Distractions
No ads, no signup, no internet needed. Just practice.
🥷 For every learner: NumberNinja is a focused math practice game — from kids just starting out to teens and adults brushing up. Train daily, level up your belt, and become a master.
🥋 White Belt
⚡ 0 XP
🪙 0
Choose Your Dojo 🥷
Pick a topic to train in. Each dojo has different challenges.
¾
Fraction Dojo
Add, subtract, simplify and compare fractions.
⚔️ Tricky
×
Multiplication Dojo
Times tables, 2-digit and division challenges.
⚔️ Medium
0.5
Decimal Dojo
Add, compare and master place value of decimals.
⚔️ Medium
?
Word Problem Dojo
Real Singapore problems — money, time, hawker, MRT.
⚔️ Hard
⚡
Speed Round
30 seconds! Answer as many as you can. Random topics.
🏃 Timed
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Boss Battle
10 tough questions. No mistakes allowed. Can you survive?
💀 Expert
🪙 0
🛒 Ninja Shop
Spend coins on boosts. Use them mid-round to dominate your dojo.