Addition and subtraction

Features Addition and subtraction

A unique application for practicing addition and subtraction for all ages.Peculiarities:- No ready-made answers - stimulates mental processes- Select the difficulty of examples: counting to ten, passing through ten, adding and subtracting two-digit and single-digit numbers, as well as two-digit numbers up to 100- Selection of questions for training, taking into account previous answers- Timing to respond, taking into account the complexity of the example- Assessment for work, according to which you can see progress in learning- Laconic, minimalistic interface- Takes up little space on the phone