Order of Operations - PEMDAS
Objective: I know how to perform mixed operations with parenthesis, exponents, multiplication, division, addition, and subtraction.
If the calculations involve a combination of parenthesis, exponents, multiplication, division, addition, and subtraction then
Step 1: First, perform the operations within the parenthesis
Step 2: Second, evaluate the exponents.
Step 3: Third, perform multiplication and division from left to right.
Step 4: Fourth, perform addition and subtraction from left to right.
Example:
Calculate 23 – 3 × (8 – 6) =
Solution:
23 – 3 × (8 – 6) (perform within parenthesis)
= 23 – 3 × 2 (evaluate the exponent)
= 8 – 3 × 2(perform multiplication)
= 8 – 6 (perform subtraction)
= 2
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