Speed Math Quiz
1 / 15How fast can you solve these mental math problems?
15 quick questionsNo sign-upFree to playTap an answer below to begin ↓
What is 25 × 4?
About Speed Math Quiz
How fast can you solve these mental math problems? Speed Math Quiz packs 15 multiple-choice questions with a mix of 5 easy, 5 medium, 5 hard questions into a relaxed session of roughly 7 minutes — no sign-up, no timer pressure. An explanation appears after every answer, and finishing once a day keeps your streak alive.
A few sample questions
1. What is 25 × 4?
Answer: 100
25 × 4 = 100. A quick trick: 25 × 4 is the same as 100, since four quarters make a dollar.
2. What is 150 ÷ 6?
Answer: 25
150 ÷ 6 = 25. You can break this down: 120 ÷ 6 = 20, and 30 ÷ 6 = 5, so 20 + 5 = 25.
3. What is 18 + 27 + 15?
Answer: 60
18 + 27 + 15 = 60. A helpful trick: 18 + 27 = 45, then 45 + 15 = 60.
4. What is 9 × 11?
Answer: 99
9 × 11 = 99. One trick: 9 × 11 = (10 × 11) − 11 = 110 − 11 = 99.
5. What is 200 − 87?
Answer: 113
200 − 87 = 113. Subtract 87 from 200: 200 − 80 = 120, then 120 − 7 = 113.
Things you'll learn along the way
- 15% of 200 = 30. Calculate 10% (20) plus 5% (10) to get 30.
- 12 × 15 = 180. Break it down: 12 × 10 = 120, and 12 × 5 = 60, so 120 + 60 = 180.
- The square root of 144 is 12, because 12 × 12 = 144.
Frequently asked questions
Can I print Speed Math Quiz?
Yes — use the Print button at the top of the page for a clean question sheet, or "Print with Answers" to make an answer key. Printed sheets work well for group play at home, in a classroom, or at a senior center.
Will I lose my progress if I close the page?
Your overall progress — XP, streaks, and badges — is saved in your browser automatically. A quiz that's underway restarts if you leave mid-game, but at about 7 minutes, Speed Math Quiz fits comfortably in one sitting.
How many questions are in Speed Math Quiz?
Speed Math Quiz has 15 multiple-choice questions. Each one has four answer options and an explanation that appears after you answer, so you learn something even when you miss.
Is Speed Math Quiz free to play?
Yes. The entire SeniorBrainGames catalog — including Speed Math Quiz — is free, with no sign-up required, no time limits, and no ads on top of the game. It also works offline once the page has loaded once.
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