Presentation Transcript
Order of Operations :Order of Operations How to solve equations like:
3 + (4 * 5) / 2
Slide 2:Please
Excuse
My Dear
Aunt Sally Order of Operations
Slide 3:Please Parentheses
Excuse
Exponents
My Dear
Mulitiplication and Division from left to right
Aunt Sally
Add and Subtract from left to right
Slide 4:Please Parentheses
3 + (4 * 5) / 2
The 4 * 5 is in parentheses, so this gets done first.
4 * 5 = 20
Our equation simplifies to 3 + 20 / 2 Solving 3 + (4 * 5) / 2
Slide 5:Excuse
Exponents
There are no exponents, so we go on. Solving 3 + (4 * 5) / 2
3 + 20 / 2
Slide 6:My Dear
Mulitiplication and Division from left to right
20 / 2 = 10
Our equation simplifies to 3 + 10 Solving 3 + (4 * 5) / 2
3 + 20 / 2
Slide 7:Aunt Sally
Add and Subtract from left to right
3 + 10
13 Solving 3 + (4 * 5) / 2
3 + 20 / 2
3 + 10
Slide 8: Solving 3 + (4 * 5) / 2
3 + 20 / 2
3 + 10
13
13 is the final answer!
Use the order of operations to solve: :Use the order of operations to solve: 10 + 32 * (8 – 3) + 7
Slide 10:Please Parentheses
8 – 3 = 5
Our equation simplifies to 10 + 32 * 5 + 7 Solving 10 + 32 * (8 – 3) + 7
Slide 11:Excuse
Exponents
32 = 9
Our equation simplifies to 10 + 9 * 5 + 7 Solving 10 + 32 * (8 – 3) + 7
10 + 32 * 5 + 7
Slide 12:My Dear
Mulitiplication and Division from left to right
9 * 5 = 45
Our equation simplifies to 10 + 45 + 7 Solving 10 + 32 * (8 – 3) + 7
10 + 32 * 5 + 7
10 + 9 * 5 + 7
Slide 13:Aunt Sally
Add and Subtract from left to right
10 + 45 + 7
62 Solving 10 + 32 * (8 – 3) + 7
10 + 32 * 5 + 7
10 + 45 + 7
Slide 14: Solving 10 + 32 * (8 – 3) + 7
10 + 32 * 5 + 7
10 + 45 + 7
62
62 is the final answer!
Slide 15:Please
Excuse
My Dear
Aunt Sally Solve the following equations. Remember to use: 5 * 2 + 9 – 20 / 5
62 / 4 – (3 * 3)
2 + (20 – 15)2