Board game "Mental arithmetic. Step 2. Fold and subtract on an abacus ”, 6+

mental arithmetic. Step 2

The series “Mental Arithmetic” is a program for the development of mathematical abilities of children, teaching an oral account and calculations in the mind without a calculator.

How to play?

The contents This box is the second step in the development of mental arithmetic and will help the child master the addition and subtraction on Abakus. The unique mechanics of consistent study allows you to plunge into the world of mental arithmetic: the cards themselves tell you when to go to practice.

All cards with tasks are laminated. The kit includes a marker that can be drawn on cards. You can erase the written side of the marker.

Attention! Abakus is not included in the kit.

If the child is not yet familiar with the designation of numbers on Abakus, go to the set of "mental arithmetic. Step 1 "..

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