What is the answer to 6 ÷ 2(2 + 1) ?

3 Comments

  • Paul - 8 years ago

    Thank you Anand and Philip for your very interesting contributions.

  • Philip LLOYD - 8 years ago

    I found it VERY frustrating not being able to type the operations into this comment box so I put the problem on one of my websites as shown below.

    There can be NO CONTROVERSY about problems like this. There can only be one UNIQUE answer.
    Please visit my website.
    http://knowingisnotunderstanding.weebly.com
    Scroll down to item 23

  • Anand Mehta - 8 years ago

    The mnemonic for order of operations is BIDMAS in the UK and PEMDAS in the US. This reflects the fact that most (?) mathematicians use PE(M=D)(A=S). There are, thus, two pairs of operators with equal priority and these are executed left to right. In fact, there is an american mathematician (can't remember his name) who is trying to promote the mnemonic PE-Doctor-Donkey. Doesn't quite sound as elegant, I guess.

Leave a Comment

0/4000 chars


Submit Comment