In the study of mathematics in the first grade of primary school, the most important knowledge point is the oral addition and subtraction within 100. Because primary school students are unfamiliar with numbers, after the accumulation of time and life, they will not calculate faster like adults. Some pupils can work it out, but it is slow. Some children have arrived at the exam time and haven't finished the questions yet. We should improve.

Because the final exam is coming soon, the teacher has prepared 3/kloc-0 sets of special exercises on oral calculation and addition and subtraction for the first grade primary school mathematics. There are several ways to speed up the accuracy and speed of addition and subtraction. One is to recite the addition and subtraction table within 20. This teacher has prepared for everyone before, and you can ask the teacher for anything you don't have. There are also fast algorithms for splitting, such as breaking ten, abdicating and so on. Finally, of course, practice makes perfect, so do more exercises. In fact, children will continue to look for rules and find algorithms that suit them in the process of doing problems.

Parents can take these questions back and let their children practice half a set or one set every day. Don't let children do too much, which is easy to produce rebellious psychology. Do a part every day, practice every day, accumulate over a long period. Children's mental arithmetic problems will certainly grow up slowly.

Because the space is too large, I prepared a set of 10 for you first, and the rest will be distributed to you later. I hope all the children can solve the problem of oral calculation quickly and accurately. Let's go

Finishing: Teacher Zhu

Source: WeChat official account content The craftsman can get the word version.