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Order of Operations. 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. Mnemonic. P lease Parenthesis E xcuse Exponents M y D ear - PowerPoint PPT Presentation
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Order of Operations
Definition
The order in which mathematicians perform math problems.
a) Parenthesis – working inward outwardb) Exponentsc) Multiply or Divide – Left to Rightd) Add or Subtract – Left to Right
Mnemonic
• Please• Parenthesis
• Excuse• Exponents
• My Dear• Multiply or Divide – Left to Right
• Aunt Sally• Add or Subtract – Left to Right
Example 1:
2 x 3 - (4-2) + 32
MultiplicationParenthesis
Subtraction Addition
Exponents
2 x 3 - (4-2) + 32
2 x 3 - 2 + 32
Parenthesis
Exponents
6 - 2 + 9Multiply
2 x 3 - 2 + 9
Add or Subtract – Left to Right
4 + 913
Example 2:
4 X 6 – (3 + 4) + 22
MultiplicationParenthesis
Subtraction Addition
Exponents
4 X 6 – (3 + 4) + 22
4 x 6 - 7 + 22
Parenthesis
Exponents
24 – 7 + 4Multiply
4 X 6 – 7 + 4
Add or Subtract – Left to Right
17 + 421
Practice Problems
3 + 5 x 7
(1 + 3) x (8 - 4)
6 - 6 + (7 - 0) - 7
4 - 3 + (5 - 1) - 3
3 + 9 x 8 – 62
24 6 x 2 x 2
2+3 x (4+(6 x 3-8)) x2
Answer
Answer
Answer
Answer
Answer
Answer
Answer
÷
3 + 5 x 73 + 35
38
Back
(1 + 3) x (8 - 4)4 x (8 – 4)
4 x 416
Back
6 - 6 + (7 - 0) – 76 – 6 + 7 - 7
0 + 7 – 77 – 7
0
Back
4 - 3 + (5 - 1) – 34 – 3 + 4 -3
1 + 4 – 35 – 3
2
Back
3 + 9 x 8 – 62
3 + 9 X 8 – 363 + 72 – 36
75 – 3639
Back
24 / 6 x 2 x 2 4 x 2 x 2
8 x 216
Back
2+3 x (4+(6 x 3-8)) x22 + 3 x (4 + (18 – 8)) x 2
2 + 3 x (4 + 10) x 22 + 3 x 14 x 2
2 + 42 x 22 + 84
86Back
