Mathematics. Addition and subtraction. Grade 3

The main methods of account 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 100 and within 1000.
Different types of exercises are given:
Simple and separate addition and subtraction,
combined examples,
for written addition and subtraction in the range of 1000.
Examples and tasks of the book will help the child work out and fix to automatism, activate mental activity, develop memory, attention and attention and attention and attention The 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 classes at home