Any teachers and parents know that without regular exercise computational skills training of younger schoolboys impossible. Moreover, such training is best done not by workbooks, where the curriculum is the same for all children, but individually, selecting tasks for each student. Assignments to consolidate the skill usually boring for children. We offer them in an entertaining way. "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). We hope that the children interested in the examples submitted to the non-standard form, and the challenges that are cute characters (each new manual). 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.