Calculating in Mind. Mathematical Trainer

The workbook “Mathematical Trainer. Calculating in Mind” will help the child master the basics of mathematics:
- mastering counting
- solving mathematical problems
- section for name and surname on the cover
- convenient format

This workbook contains engaging exercises based on the author's methodology... of O. B. Kolesnikova - an educator with many years of experience in preschool institutions. The interesting tasks will not let the little inquisitive one get bored, and he will enjoy completing them and easily solving simple problems in his mind.