Question 2: What is the solution after the mixed operation of addition, subtraction, multiplication and division? Mixed operation of addition, subtraction, multiplication and division of rational numbers: multiply first and then divide, then add and subtract. When there are brackets, count the brackets first, then the brackets and finally the braces.
Question 3: Addition, subtraction, multiplication and division in mathematical formulas, which one to do first will teach you a formula.
From left to right, from inside to outside, from high to low.
From left to right, it is calculated from left to right.
From the inside out, there are brackets. What's in brackets first, and what's outside brackets.
From high to low, the third-stage operation power is the highest, the second-stage operation is the second highest, and the first-stage operation is the lowest.
Calculate the power first, then multiply and divide, then add and subtract.
I wish you progress in your studies.
Question 4: What is the most important in the case of addition, subtraction, multiplication and division? Answer: multiply and divide first, then add and subtract.
Question 5: Math: Why do you have to calculate multiplication and division before adding and subtracting? This is a mathematical law. The reason for this provision. It is because in practical problems (that is, in practical applications), when there are multiplication and division and addition and subtraction at the same time, multiplication and division are much more than addition and subtraction first. This can reduce a lot of trouble with brackets. (If it is stipulated that addition and subtraction should be calculated first, then multiplication and division must be put in brackets before calculation, so most of them need to be put in brackets. )
Question 6: What is the problem of addition, subtraction, multiplication and division, and then multiplication and division add up? If there are brackets, calculate the brackets first (excluding addition, subtraction, multiplication and division).