Mental Math Sprint
Answer as many sums as you can in 60 seconds. Build a streak for bonus points.
How to play
- Pick a difficulty, then press Start. You have 60 seconds.
- Type the answer to each question and press Enter. Wrong answers just move you on, so there is no penalty besides the lost streak.
- Each correct answer scores points; consecutive correct answers add a streak bonus.
- When the clock hits zero your score is compared with your personal best, saved on this device.
Tips and strategy
- Round and adjust: 49 + 38 is 50 + 38 minus 1.
- For multiplication by 5, halve the number and multiply by 10.
- Do not stop on a hard question. Skipping keeps the clock working for you; a broken streak costs less than ten wasted seconds.
- Use the numeric keypad or the phone number pad and keep your eyes on the question, not the input box.
FAQ
- Is there a way to practise only one operation?
- Easy mixes addition and subtraction, Medium adds multiplication, and Hard adds larger numbers and division. Pick the level that matches the skill you want to train.
- Where is my best score stored?
- Only in your browser's local storage on this device. Nothing is sent to a server, and clearing site data resets it.