CalcSprint 作者: Ivan Lukichev
Train your brain in your browser with fast math sprints, 3 difficulty levels, and local high scores.
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CalcSprint is a lightweight browser extension for quick mental math practice right inside your browser. Open the popup, choose a difficulty level, and start solving fast arithmetic challenges in a 60-second sprint.
It is designed for people who want a short brain workout without opening a full website, creating an account, or dealing with distractions. Everything starts instantly and works in a compact popup window.
What you can do with CalcSprint
Practice mental math in short 60-second rounds
Choose from Easy, Medium, and Hard difficulty levels
Solve fast arithmetic tasks directly in the extension popup
Track correct answers, wrong answers, and streaks
Save your best score locally in the browser
Train in a simple, distraction-free interface
Difficulty levels
Easy — addition and subtraction
Medium — mixed arithmetic with faster flow
Hard — more demanding quick math challenges
Why people may like it
Fast to launch
No sign-up required
Clean interface
Great for quick daily brain training
Useful for students, adults, and anyone who enjoys mental math
How it works
Open the CalcSprint extension
Choose your difficulty
Start a 60-second sprint
Type your answers and press Enter
Try to beat your best local score
CalcSprint is built as a simple and focused mini trainer. If you want more levels, more challenge types, and a fuller experience, you can continue on the website version.
It is designed for people who want a short brain workout without opening a full website, creating an account, or dealing with distractions. Everything starts instantly and works in a compact popup window.
What you can do with CalcSprint
Practice mental math in short 60-second rounds
Choose from Easy, Medium, and Hard difficulty levels
Solve fast arithmetic tasks directly in the extension popup
Track correct answers, wrong answers, and streaks
Save your best score locally in the browser
Train in a simple, distraction-free interface
Difficulty levels
Easy — addition and subtraction
Medium — mixed arithmetic with faster flow
Hard — more demanding quick math challenges
Why people may like it
Fast to launch
No sign-up required
Clean interface
Great for quick daily brain training
Useful for students, adults, and anyone who enjoys mental math
How it works
Open the CalcSprint extension
Choose your difficulty
Start a 60-second sprint
Type your answers and press Enter
Try to beat your best local score
CalcSprint is built as a simple and focused mini trainer. If you want more levels, more challenge types, and a fuller experience, you can continue on the website version.
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