What's new in this version (1.0):
This App "one digit -" is one digit subtraction training App. And this is a search game and speed puzzle game, too. There are 9 questions on nine stages, random 81 questions from "2 - 1 = 1" to "18 - 9 = 9".
Apps from the same developer
MelodyMelody is a clasical memory match game by melodies and auditory memory.
Musical Ears is music ear training App to feed absolute pitch or relative pitch.
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