520 算术


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QianBaby elementary school, looking at her one day grew up is my greatest happiness, every day to accompany her to do the homework, learning new knowledge are very happy.

But always help her out arithmetic makes me very upset, less than 100 addition and subtraction, two plus a carry, two minus one abdicated, not too hard not to is too simple, also find her lack of strengthening.

Universal Supermans father can not say no, so the development of this application. Hoping to help other parents.

Lets practice with the kids and witness the growth of his (her).

QianBaby: I am always willing to accompany you grow!