It aims to improve the skill of calculation by measuring the time.
Please enhance the computing power by repeating every day.
- You can select the type of questions from multiplication, division and both.
- If you select "Difficult" for the level, you will answer the fill-in-the-blank questions
- You can select the number of questions, from 10, 20, 30
- You can turn on and off the sound effect by the icon
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