Scholars trail · ages 13–15
Free math practice for 15-year-olds
Fifteen-year-olds bring together everything from earlier years: confident equation solving, powers, ratios and geometry, with linear graphs, slope and basic trigonometry starting to appear.
Number Quest covers both ends: Scholars to keep the foundations sharp, and Masters for linear equations, quadratics, slope and trig basics. Every question has a hint and an explanation.
No sign-up, no ads. Works in any browser.
What children usually work on at age 15
- Equations, including brackets and negatives
- Exponents and order of operations
- Ratio and rate problems
- Angle reasoning
- Linear equations, slope and trig basics (Masters)
Try some example questions
Tap a question to see the answer and how it works.
1. Order of operationsWhat is 16 + 48 ÷ 6?10.6666666666666662425304
Answer: 24. 48 ÷ 6 = 8, then 16 + 8 = 24.
2. AnglesTwo angles are complementary. One is 66°. What is the other?1146624156
Answer: 24. 90 − 66 = 24.
3. Solve for xSolve: x − 3 = 2225192622
Answer: 25. x = 22 + 3 = 25.
Tips for parents and teachers
- Mix Scholars revision with Masters previews.
- Use the daily goal to keep revision steady before exams.
- Read the explanation even after a correct answer to check the method.
- Compare weekly XP on the leaderboard for motivation.
Why Number Quest
Free, with no ads and no in-app purchases. Five trails from age 5 to 16+, five ways to play, a daily goal that builds a streak, buddies to unlock and a friendly weekly leaderboard. Questions are made fresh on the device, so there is always something new.
An Android app on Google Play is coming soon. Until then, play free right here in your browser.