Fast Calculation for Children Aged 7-10. A Notebook-Training Tool for Teaching Quick Addition and Subtraction to Children

In elementary school, there are often problems with mathematics because children do not know how to perform elementary arithmetic operations. For this reason, a large number of mistakes are made in the OGE and EGE. For a child to feel confident, they must be able to add and subtract numbers quickly and accurately in their head. This notebook-training tool will help teach children aged 7–10 to add and subtract numbers within 100. The exercises are designed for 21 days, which will allow for a thorough practice of calculation skills and successful application in the future.