Order of Operation

sBy: Lisa Foti

EDT 210 Wednesday 9–10:50

Objective:• To give students a better understanding of the order of operations.

▪Practice problems and quizzes are included to assist in the lesson.

Audience:•Fourth to sixth grade.

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P.E.M.D.A.S.

Quiz

Practice

Credits

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What does order of operations mean?

What does order of operations mean?

• Order of operations is the order in which you solve a math problem with many components.

• The first rule of order of operations is P.E.M.D.A.S.

• Don’t forget to solve the problem from left to right!

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Parentheses•The first step of the order of operations is parentheses.

Ex. (3 x 6) = 18 Ex. (3 x 6) + 2 = 20

18 + 2 = 20

Exponents•The second step of the order of operations is exponents.

Ex. (3 + 2)2 = 25

52 = 25

Ex. 3 + (3 + 2)2 = 28

3 + 25 = 28

Multiplication•The third step of the order of operations is multiplication.

Ex. 6 x 4 = 24 Ex. (3-2)2 x 4 = 4

1 x 4 = 4

Division•The fourth step of the order of operations is division.

Ex. 8 ÷ 2 = 4 Ex. 8 ÷ 2 + (3 x 6) = 22

4 + 18 = 22

Addition•The fifth step of the order of operations is addition.

Ex. 3 + 6 = 9 Ex. 3 + 4 ÷ 2 = 4

3 + 2 = 4

Subtraction•The last step of the order of operations is subtraction.

Ex. 16 – 4 = 12 Ex. 18 – (2 + 2)2 = 2

18 - 16 = 2

Practice

(3 + 5)2 – 2 =28 – 32 x 2 =

3 + 8 ÷ 4 + 12 =

(3 + 5) – 2 =

Answers

Copy the following problems into your notebook and practice them.

Practice

42 + (2 x 5) x 3 – 6 ÷ 2 =

Answers

Copy the following problems into your notebook and practice them.

(3 x 2)2 ÷ 5 – 3 + 4 =

Practice

Need extra help? Try this:

More order of operation problems

Quiz

12 x 2 – 4 x 6 =

Copy the following problems on a piece of paper and hand them in when you are done.

(12 + 2) – 12 ÷ 22 x 1 =

Answer

Quiz

(3 x 2)2 x 4 ÷ 2 + 32 – 4 =

Copy the following problems on a piece of paper and hand them in when you are done.

(12 + 2) – 12 ÷ 22 x 1 =

Answer

Credits

Graphics from:

Microsoft Office Online

Website from practice help: Math Goodies http://www.mathgoodies.com/lessons/vol7/order_operations.html

The EndThank you for looking at my

PowerPoint lesson plan!