Some children are too lazy to recite, so they have to add, subtract, multiply and divide with their fingers. Once you do a complicated problem, you will easily make mistakes if you are a little flustered. Parents should promptly urge their children to remember these basic contents, make full use of the fragmented time to ask more questions and answer more questions, and strengthen the memory effect.
Second, we must master the operating rules and use them flexibly.
For example, in mixed operation, it is necessary to master what to calculate first, then what to calculate, and how to calculate specifically. Where mistakes are easy to make, write them in a small notebook, which will be consolidated at ordinary times.
Third, don't count with your mouth.
Some children know everything they ask and do wrong. A large part of the reason is that I like to do oral calculations, and the result is wrong. After the correct rate is high, it can be taken orally. Do not do it now. Don't be lazy about this formula.
Fourth, the formula should be standardized, and the aligned ones must be aligned.
When calculating the formula, according to the rules, single digits are aligned with single digits, ten digits are aligned with ten digits, and decimal points are aligned (addition and subtraction). Otherwise, it is easy to make mistakes.
Fifth, check in time: check quickly after calculating one step, and then do it; The whole question is finished. Please check it again.
Some children do it as soon as they get the questions in order to take pictures quickly. Without inspection, the result is easy to make mistakes. It is necessary to develop the good habit of timely inspection and finish the step-by-step inspection. Actually, it won't take too long to check it again just after it's finished. The key is habit.
Sixth, the places that often make mistakes should be written in obvious positions, and watched repeatedly to enhance the effect.
The position of decimal point in decimal multiplication is easy to make mistakes, and it is also easy to make mistakes when the decimal point moves back and forth. It's best to write these wrong questions in obvious places, and read more at ordinary times. After a long time, there will be no mistakes. Other mistakes can be made in this way.