Subtraction description

NOTE: We have deployed a new and improved app including this and different games. Please, have a look: https://play.google.com/store/apps/details?id=mind.your.maths

Configure the options of the subtraction that you want to generate (minued, subtraend, decimals and negative results) and practique all time that you want.
The best Android's application to learn to subtract a totally free form.

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