Masha's Exercises. Exercises for the Calculation in the 1st Ten. The 1st Form

"Mathematics with a smile" - a series of small collections of tasks and notebooks to support mining and computational skills in primary school (with the names of these benefits can be found on the back cover). These benefits are universal. They are not made for any particular program. Editions series "Mathematics with a smile," can be used for activities outside the lesson, at home, during the holidays.