04-16-2017, 06:06 PM
Vinny makes the point very eloquently, I know the aswer is 1, because I borrowed my maths degree wifes scientific calculator! It is the confusion engendered by the fact that calling Bodmas a "rule" is useless unless you fully understand that you need to be so carefull with the interpretation of it to get the correct answer, even Andrews link tells you that
"Multiplication and division rank equally, so you go from left to right in the sum, doing each operation in the order in which it appears" Going by this rule, you divide next, then multiply, and so end up with 100 which is wrong. Unles it is properly explained that the brackets remain to be dealt with and the 2X is considered to be part of the brackets, and not part of the division, then as vinny says, set up to fail. BODMAS is about as much use as I before E except after C, which applies in every case, except of course where it doesn't! Use a calculator!
"Multiplication and division rank equally, so you go from left to right in the sum, doing each operation in the order in which it appears" Going by this rule, you divide next, then multiply, and so end up with 100 which is wrong. Unles it is properly explained that the brackets remain to be dealt with and the 2X is considered to be part of the brackets, and not part of the division, then as vinny says, set up to fail. BODMAS is about as much use as I before E except after C, which applies in every case, except of course where it doesn't! Use a calculator!
Man who say it cannot be done should not disturb man doing it! https://www.youtube.com/user/philhermetic/videos?