A Conversation for Mnemonics and Other Learning Devices
Arithmetic
The Researcher formally known as Dr St Justin Started conversation Aug 15, 2002
Writen mathematics can be a little confusing. Especially when it's written sloppily. For instance, which of the following is correct?
10-5*2=10
10-5*2=0
Which order should you do the subtraction and multiplication? Common sense would probably tell you to perform the operations in the order that they appear - ie left to right. Unfortunately, this would give the wrong answer for this example!
In fact, the operations should be performed: Brackets, Indices, Division, Multiplication, Addition, Subtraction. Remember this order with BIDMAS.
So our example should be computed as 10-5*2 = 10-10 = 0. 
Arithmetic
xyroth Posted Aug 16, 2002
my teacher taught that as BODMAS, where the indices were replaced by "of", as in 2 of this or 4 of that.
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