1. Sec 1.1 – Order of Operationspg

2. Order of Operations
Order of Operations allows us to each evaluate an expression or equation and come up with the SAME answer.
P – Parentheses (P)lease
E – Exponents (E)xcuse
M – Multiplication & (M)y
D – Division (D)ear
from left to right
A – Addition & (A)unt
S – Subtraction (S)ally

3. PEMDAS I generally refer to “order of operations” as PEMDAS problems
Evaluate or simplify
5 2 – (2 3 – 6) + 45 ÷ 5
5 2 – (8 – 6) + 45 ÷ 5
5 2 – ÷ 5
25 – ÷ 5
25 – 2 + 9
23 + 9 32

4. Now you try [39 – 3(4 – 2) 2] ÷ 3 [6 – (7+9)] 2 – 11 2
[39 – 3(2) 2] ÷ 3
[39 – 3 (4)] ÷ 3
[39 – 12] ÷ 3
27 ÷ 3 9
[6 – (7+9)] 2 – 11 2
[ 6 – 16] 2 – 11 2
[ -10] 2 – 11 2
100 – 121
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