Fill in the correct answer. There are 4 modes for you to choose. Each mode has 2 levels. Easy at begin and gets harder over time. You should start with level 1. Trust me :))
Beat your limit to improve your math skill. Compete with your friends for more excitement.
Have fun and good luck !
~NightDev
4.0 4.0
Fill in the correct answer. There are 4 modes for you to choose. Each mode has 2 levels. Easy at begin and gets harder over time. You should start with level 1. Trust me :))
Beat your limit to improve your math skill. Compete with your friends for more excitement.
Have fun and good luck !
~ NightDev
More Information about: Luyện Tính Nhẩm - Mental Arith