Mathematics. 1 class. Addition and subtraction. Late T. S.

The main account techniques are formed in the child in the first years of training. That is why it is very important to pay special attention to the development of this skill. The manuals present examples and tasks for addition and subtraction in the range of 10 and within 20.

Different types of exercises are given:

• For simple and separate addition and subtraction,
• combined examples,
• for addition and subtraction with the transition through a dozen.

To help in solving under examples, brackets are offered to decompose the component and subtracted components for convenient for account.

Examples and tasks of the book will help the child work out and fix to automatism, activate mental activity, develop memory, attention and speed of reaction.

The book is prepared in accordance with the requirements of the Federal State Educational Standard of Primary Education. It can be used when working with any textbook included in the federal list. The manual will be useful in mathematics lessons and for independent homework.