Order of Operatio ns By: Lisa Foti EDT 210 Wednesday 9– 10:50
Mar 28, 2015
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
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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!