I count up to 100. The oral account quest. Addition and subtraction without transition through a dozen

The idea of ​​the project, how is this idea embodied? Why should this book be bought? A group of buyers "oral account - gymnastics for the mind." The simulator "I count to 100 will help to make it interesting and diverse. Addition and subtraction without transition through a dozen", intended for students of grades 1-2. It contains exercises and games that will help the children master an oral account within a hundred. The manual implements the principle of advanced training, which allows already in the second grade to freely add up and subtract the multi -digit numbers in the mind. Continuation in notebooks: "I think up to 1000", "transition through a dozen" others. The book has about 150 tasks, description of games, guidelines for teachers and parents. It is recommended for use together with "quest tranier Oral account. Addition and subtraction ", as well as with other notebooks for collective quests