Addition and subtraction within 10, accounting for 50%. There is no carry addition and corresponding subtraction within 20, accounting for 20%. Carry addition is less than 20, accounting for 30%. The total number of questions in the test paper is 100, mainly written directly, with a few exercises and two-step calculation questions (at the end). When the test paper was presented, all the parts were arranged in disorder.

Addition and subtraction in 20 minutes, 5 minutes 120 channel. Add and subtract within 100, 90 channels in 5 minutes.

Extended data:

Students' understanding of the event is quite general and not specific enough. They often only pay attention to some independent things, but can't perceive the connections and characteristics between things, so they lack the overall understanding of things.

Sometimes when doing oral arithmetic exercises, some students blurt out the answers before they see the numbers or operation symbols clearly. For example, consider 0 as 6, 45 as 54 and+as-in the formula.

In addition, when students calculate some complex problems such as expressions, they will have rejection psychology, which is manifested as extreme impatience, careless examination and calculation, which will lead to a slip of the tongue.

The first-year students are too young to realize the importance of correct oral calculation. I am not interested in verbal arithmetic, and it is more troublesome to repeat training mechanically, so I talk nonsense without thinking.

Even the best study habits are not fully developed, and you can't concentrate on doing oral calculations when doing homework; Irregular writing, scrawled handwriting, and difficulty in checking calculation after calculation are all causes of calculation errors.

Baidu encyclopedia-oral calculation

Baidu encyclopedia-primary school mathematics