Math Magic, which helps him practice arithmetic;

还有利他练习算术的数学戏法；

youdao

Sometimes people think there is something magic about sensorial math materials.

有时人们认为数学教具是神奇的事物。

youdao

Sometimes people think there is something magic about sensorial math materials.

有时人们认为数学教具是神奇的事物。

youdao