這是一個小測驗，測試你的心算。你能多快想的？
This is a quiz which tests your mental calculation. How fast can you think?
- 4 posible answers
- All questions generated randomly.
- 60s 40s 20s mode
Great app for kids.
這是一個小測驗，測試你的心算。你能多快想的？
This is a quiz which tests your mental calculation. How fast can you think?
- 4 posible answers
- All questions generated randomly.
- 60s 40s 20s mode
Great app for kids.