A Conversation for Mnemonics and Other Learning Devices


Post 1

The Researcher formally known as Dr St Justin

Writen mathematics can be a little confusing. Especially when it's written sloppily. For instance, which of the following is correct?


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. smiley - ok


Post 2


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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