1. Rules in the Order of Operations

2. 1. Perform the operations within each pair of grouping symbols
1. Perform the operations within each pair of grouping symbols. (Parenthesis, brackets and braces)beginning with the innermost pair.

3. 2. Simplify the expression with exponents.
3. Perform multiplication and division as they occur from left to right.

4. 4. Perform addition and subtraction as they occur from the left to right.
Back to slide 6

5. Example # 1 Simplify:12÷6x2+4-5=N Rule 3: 12÷6=2, so 2X2+4-5
Rule 3: 2x2=4, so
4+4-5

6. 12÷6x2+4-5=N
Rule 4: 4+4=8, so
8-5=3
Answer:12÷6x2+4-5=3

7. Example # 2 (2x2=4) 3x[4-2x(10-8)+12÷6x1] Rule 3:3x[4-4+12÷6x1]
Rule 1:3x[4-2x2+12÷6x1]
(10-8=2)
Rule 3:3x[4-4+12÷6x1]
(2x2=4)

8. (12x6=2) (2x1=2) (4-4=0) 3x[4-2x(10-8)+12÷6x1] Rule 3:3x[4-4+2x1]

9. 3x[4-2x(10-8)+12÷6x1]
Rule 3:3x2=6
(0+2=2)
3x[4-2x(10-8)+12÷6x1]=6