1. Order of Operations

2. Definition The order in which mathematicians perform math problems.
Parenthesis – working inward outward
Exponents
Multiply or Divide – Left to Right
Add or Subtract – Left to Right

3. Please Excuse My Dear Aunt Sally Mnemonic Another Mnemonic Parenthesis
Exponents
My Dear
Multiply or Divide – Left to Right
Aunt Sally
Add or Subtract – Left to Right
Another Mnemonic

4. Example 1: 2 x 3 - (4-2) + 32 Subtraction Addition Exponents
Multiplication
Parenthesis

5. 2 x 3 - (4-2) + 32
Parenthesis
2 x
Exponents
2 x
Multiply
Add or Subtract – Left to Right
4 + 9 13

6. Example 2: 4 X 6 – (3 + 4) + 22 Subtraction Exponents Multiplication
Parenthesis
Addition

7. 4 X 6 – (3 + 4) + 22
Parenthesis
4 x
Exponents
4 X 6 – 7 + 4
Multiply
24 – 7 + 4
Add or Subtract – Left to Right
17 + 4 21

8. Practice Problems 3 + 5 x 7 (1 + 3) x (8 - 4) 6 - 6 + (7 - 0) - 7
Answer
(1 + 3) x (8 - 4)
Answer
(7 - 0) - 7
Answer
(5 - 1) - 3
Answer
3 + 9 x 8 – 62
Answer
[12 – ( ) ] ÷ 2
Answer
2+3 x [4+(6 x 3-8)] x2
Answer

9. And the grand finale!!!!
17 + (10.5 ÷ 0.5) + 5 3

10. Resources Math Goodies Amby.com The World of Math Online Fun Brain
Amby.com
The World of Math Online
Fun Brain
Dositey – Mystery Game
Aplus Math – Flash Cards
AAA Math.com

11. 3 + 5 x 7
3 + 35 38
Back

12. (1 + 3) x (8 - 4)
4 x (8 – 4)
4 x 4 16
Back

13. (7 - 0) – 7
6 –
0 + 7 – 7
7 – 7
Back

14. (5 - 1) – 3
4 –
1 + 4 – 3
5 – 3 2
Back

15. 3 + 9 x 8 – 62
3 + 9 X 8 – 36
– 36
75 – 36 39
Back

16. [12 – ( ) ] ÷ 2
(12 – 5.874) ÷ 2
6.126 ÷ 2 = 3.063
Back

17. 2+3 x (4+(6 x 3-8)) x2 2 + 3 x (4 + (18 – 8)) x 2 2 + 3 x (4 + 10) x 2
2 + 84 86
Back