The first grade oral calculation 100 question requires 5 minutes. For children in the first grade of primary school, fifty or sixty words in five minutes is enough. 5 minutes 100 courses, only very good children can do it, and it must be the best result after practice.

There is a reason why children's calculations are fast and slow.

The teacher in charge of the test class said it was mainly related to training. Practice in oral calculation makes perfect, just practice more. Some children may be better at the same oral arithmetic homework. If they can't finish it at one time, they will do it again until they are proficient. Some parents are very demanding and will guide them, and some parents will compete with their children over and over again.

In addition, children are different. Some people are naturally sensitive to numbers. Some people have taken abacus mental arithmetic classes or practiced oral arithmetic before going to school, which will also help. Judging from the home visits before entering school, most parents pay more attention to literacy and do less training in mathematical calculation.