Objective: Use order of operations.
Activate Prior Knowledge:
Solve.
- 3 + (9 + 7)=
- (7-3) + 4=
- 4 x (2 + 5)=
- (9 - 2) x 7=
New Knowledge:
To evaluate an expression that contains more than one operation you use rules called order of operations.
We use PEMDAS to remember the operations:
P: parenthesis
E: exponents
M: multiplication
D: division
A: addition
S: subtraction
Multiplication and division is always the first operation from left to right.
Addition and subtraction is always the first operation from left to right.
Application:
p.45 (6-15)
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