Mathematics. All chains of examples for oral and written work. 1 class. Kulakov A.A.

An important place in the acquisition of calculation skills is occupied by oral and written work with mathematical chains. The solution of the mathematical chains of examples will help the child work out and fix the scores to automatism, activate mental activity, develop the memory, attention and speed of the reaction, and prepare for the implementation of more complex calculations for multiplication and division. Solving the chains of examples from simple to more complex, students will work out the rules for the procedure for fulfilling the calculations in examples with brackets and without them.

The book includes the topics: “Addition and subtraction in the range of 5”, “Addition and subtraction within 10”, “Addition and subtraction in the range of 20 without brackets”, “Addition and subtraction in the range of 20 with brackets ".

Each option gives examples for addition and subtraction with different amounts of terms, with brackets and without brackets.