Order of Operations

Order of Operations

Why do we need an “Order of Operations?”

Problems with more than one operation can be solved in different ways. Only one answer is correct. To make sure everyone gets the same value, we use the Order of Operations.

The correct order of operations is:

arentheses xponentsultiplication ivision

From left to right

ddition

ubtraction From left to right

One way to remember PEMDAS is:

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Be careful when there is both addition and subtraction or multiplication and division

in a problem!!!

8 – 4 + 3 9 ÷ 3 · 4

9 + 2 – 1 + 3 8 · 3 ÷ 3 · 2

Let’s try some together:

A) 5 + (12-3) B) 8 – 3 · 2 + 7

C) 36 ÷( 1 + 2) 2

Now try some on your own:

D) 21 ÷ 3 · 2 – 4 E) (2 + 10) 2 ÷ 4

Documents

Order of Operations