Introduction to mental arithmetic. Introduction to soroban. Addition and subtraction on the soroban

Direct invoice without formulas

Solving examples with formulas of junior fellows, senior fellows, and compound formulas

The solution of examples with multi-digit numbers.

Mental score.

You need to have a soroban with you.

Notepad and pencil for notes.

On the first block of the course of mental arithmetic for teachers, you will learn the definition of "mental arithmetic", the purpose of the course, learn to count two-three-four-digit examples on soroban, using all the formulas, get acquainted with the concept of mental counting. The course is suitable for those who want to develop their abilities for themselves, and for those who want to teach this course. But bning teachers need to pass all three blocks. In order to learn multiplication and division in soroban, go through the second block of the course. For those who want to get knowledge on the method of teaching the course of mental arithmetic, you should pass the third block of the course.

Teachers of mental arithmetic.

Parents.

Students.

Business owner.

Directors of children's educational centers.

Young, adult, and elderly people developing their brain capabilities.

School age children.



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