What is the order of operations?
The order of operation is a set of rules that need to be kept in mind when performing mathematical problems. These rules call people to perform various operations in a mathematical problem with mixed operations such as (7 + 2) x 4 - 3. There are a number of possible answers to this problem, depending on the order of multiplication, subtraction and adding, but only one correct answer because it is what is what is at work The fact that it is with a mathematical problem. The races should be made first, followed by exponents and roots, and after working from left to right, multiplication and division. Finally, we also work from left to right, census and subtraction. People sometimes use Pemda, for parentheses, exponents, multiplication, division, addition and subtraction to remember the order of operations. Mnemonic "Please excuse my dear Aunt Sally" help people learn this abbreviation is used in a number of initial mathematics classes.
Accepting the problem in the above example, the first thing to be done would be to add inside the parentheses, 7+2, which is equal to 9. Furthermore, multiplication should be done to achieve 36. Finally, 3 must be deducted, a total of 33. If a specific order was not set, people could come up with the same correct results. For example, someone could read the above problem and come up with response 9, add 7+2 to get 9, deduct 3 out of 4 to get 1, and multiply 9 to 1 to arrive 9.
Rule from left to right for adding and subtraction and multiplication and division in the order of operations is also important. For example, in a problem like 9 - 7 + (4 x 5) ÷ 10 would be a parenthea first, the enforcement comes with a division with 9 - 7 + 20 ÷ 10. Division, so 20 ÷ 10 = 2. The addition is not priority over deduction, so right to the right. The answer to the proBlém is therefore 4, because 9 - 7 = 2 and 2 + 2 = 4. Prioritization of adding before the submission and not following the rule to the right should result in 9 - 9 = 0, very different answer!
In a way, the order of operations tells people how to read mathematical problems, as well as grammar rules tell people how to read written languages. The rules of grammar and mathematics are designed to ensure that everyone can write and read in a versatile way, ensuring that people can communicate freely with people they can never interact with personally. Standardization created by the order of operations is particularly important in mathematics, because there are as many ways to work without complicated problems, and this would result in a number of contradictory answers.