Mathematics. 1st Grade. Developing Skills in Subtraction and Addition

This educational aid will contribute to effective learning of mathematics in the 1st grade. In a simple and accessible form, it will allow for the development, reinforcement, and assessment of the child's key skills in the most important topics of the subject being studied.
Specifically selected examples will help not only to master the basic arithmetic operations of addition and subtraction within 20 but also to learn how to properly format mathematical solutions.
All tasks are clearly formulated and systematized within one spread. The work completed on each page can be independently assessed by the child - by circling a sun in the margins with the corresponding grade.