3000 examples in mathematics. Super -training. Three levels of complexity. Account within 20. Grade 1

The manual contains examples in mathematics for one of the basic for the first class of topics - “Addition and subtraction in the range of 10 and 20”. Like any other topic, it requires attentive understanding and strong consolidation.
The variety of formulations and types of tasks will not only work out to automatism, but also teach the child to search and find rational ways to solve examples and problems.
In Manuals are proposed examples of different levels of complexity distributed in three blocks. The 1st level of complexity is the usual examples, the 2nd level of complexity is the chain columns, the action in which are performed sequentially from top to bottom, the 3rd level of complexity-tasks and tasks with a cunning formulation, the successful execution and solution of which will confirm the strong knowledge of the student .
Manual can be used as additional material in mathematics lessons and for independent homework