Maths. Grade 3. Verbal counting. Addition and subtraction within 100. 300 examples

One of the conditions for successful training in mathematics is automated oral skills. Inability to an oral account leads to problems with general performance.
How to develop the ability of an oral account? It is more to consider orally.
With oral calculations, not only attention and memory develop, but also ingenuity, independence, flexibility of the mind, and also automated the speed of the reaction and the brain performance is increased. limits of 100. The variety of formulations and types of tasks will not only work out to automatism, but also teach the child to look and find rational ways to solve examples and problems.
answers at the end of the book and detailed methodological recommendations on the second and third sides of the cover will help effectively It will be useful to organize work in the classroom and at home and will be useful to teachers and parents.
The book is intended for collective and individual work in the lesson and independent classes at home