【實用教育app】Reverse one-digit addition|最夯免費app

This App is one digit addition training App. And this is a search game and speed puzzle game, too.

This is the Reverse version of my App "one digit addition".

There are 9 questions on nine stages, random 81 questions.

ex.)

Find '8 + 4' from '12', Find '3 + 4' from '7'.

免費玩Reverse one-digit addition APP玩免費

免費玩Reverse one-digit addition App

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