What is mathematical checking calculation?

Question 1: What does the math check mean? Simply put, it is to test the conditions with the results.

For example: 1+ 1=2, now use 2- 1, and see that the equation is not equal to 1. If yes, the calculation is valid, otherwise the calculation will fail.

Question 2: What does it mean to calculate and check the math problems in the third grade of primary school? Calculation check: calculate vertically first, and then check vertically in the opposite column.

For example, addition needs subtraction and division needs multiplication. Calculate A+B=C, and check c-b = a.

Question 3: What is the checking calculation of primary school math problems? Checking the calculation means checking whether the problem is done correctly, that is, counting backwards, adding or subtracting the result with two of the numbers to see if it is the same as the other number.

Question 4: What does the third grade math test mean? Check whether the previous calculation is correct by inverse operation.

For the definition of "checking calculation", see Baidu Encyclopedia for details.

Question 5: What do you mean by looking up a math problem |3-4| Looking up a math problem is mainly to check whether the formula you calculated is correct.

Question 6: What does checking mean? Checking the calculation can effectively find the errors in the calculation process, but it is of little use for solving the errors in the problem. By comparing the data obtained by checking calculation (using the results to derive conditions) with the original data, it is suggested whether the operation is correct.

Chinese name checking calculation

Classified mathematics

Explain whether the results of the previous operation of the test are correct.

Spell yàn suan

Pinyin: yànsuàn

Explanation: After calculating the problem, do it again with inverse operations (such as subtraction, addition, subtraction, multiplication and division, multiplication) to check whether the results of the previous operations are correct.

Question 7: What do you mean by calculating and checking math problems in the third grade of primary school? This problem is calculated vertically. After the calculation, write "calculus" next to it, and then use vertical calculus. And write the calculation results in the form of horizontal rows.

Question 8: What does the math check for summer homework in the second volume of the second day of junior high school mean? To put it simply, looking up mathematics is to put the calculated results back in the topic to see if they meet the conditions given in the topic.

Question 9: What does ""mean in mathematical calculation? In mathematics, it is a parallel symbol.

In physics, it is the symbol of parallel resistance calculation.

Parallel resistance calculation

AB=A*B Dan (A+B)

How to check the question 10:297+657? Mathematics 297+657

=300-3+657

=300+657-3

=957-3

=954

calculate

954-297

=954-(300-3)