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Coolmath Prealgebra
Order of Operations Lesson 1 - Why Do We Need This?  (page 1 of 2)
---- This prealgebra lesson explains why we need an official order of operations in math.
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What's the answer to this?

4 + 10 / 2 = ?

Did you get 7?

Do you see how the answer could be 9?

There are two possible ways to do this problem:

4 + 10 / 2
 

Do the addition first:

4 + 10 / 2 = 14 / 2 = 7

Do the division first:

4 + 10 / 2 = 4+5 = 9

Continued on the next page

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