You correctly solved this problem:

(20 - 3) * (2 + 4)

However, the problem you were given was different:

20 - 3 * 2 + 4

Do you see the difference? Remember: Mathematicians have arbitrarily set the 'proper' order of operations as: Multiplication or Division before Addition or Subtraction. Each level is completed from left-to-right.

20 - 3 * 2 + 4 =

20 - 6 + 4

14 + 4

18

~~~~~~~~~~~~~

Please copy this problem carefully on your paper. Before you begin work, think about what to do first.

40 - 6 * 3 + 2 =

Click on your answer:
10 20 24 104 170
any other answer



Order of Operations Automatic Flip-Through SLIDE SHOW

Overview of the Order of Operations



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