1. 1-2 Order of Operations Objective: Use the order of operations to evaluate expressions.

2. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 1 Find the value of 3 + 8  2 X 4 – 1

3. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 1 Find the value of 3 + 8  2 X 4 – 1 3 + 8  2 X 4 – 1 = 3 + 4 X 4 – 1 Divide.

4. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 1 Find the value of 3 + 8  2 X 4 – 1 3 + 8  2 X 4 – 1 = 3 + 4 X 4 – 1 Divide. = 3 + 16 – 1 Multiply.

5. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 1 Find the value of 3 + 8  2 X 4 – 1 3 + 8  2 X 4 – 1 = 3 + 4 X 4 – 1 Divide. = 3 + 16 – 1 Multiply. = 19 – 1 Add.

6. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 1 Find the value of 3 + 8  2 X 4 – 1 3 + 8  2 X 4 – 1 = 3 + 4 X 4 – 1 Divide. = 3 + 16 – 1 Multiply. = 19 – 1 Add. = 18 Subtract

7. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]).

8. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]). 44 X 4  (6 – [2* 2]) = 44 X 4  (6 – 4) Do operations in innermost grouping symbols first.

9. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]). 44 X 4  (6 – [2* 2]) = 44 X 4  (6 – 4) Do operations in innermost grouping symbols first. = 44 X 4  2 Do operations in parentheses.

10. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]). 44 X 4  (6 – [2* 2]) = 44 X 4  (6 – 4) Do operations in innermost grouping symbols first. = 44 X 4  2 Do operations in parentheses. = 176  2 Multiply.

11. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]). 44 X 4  (6 – [2* 2]) = 44 X 4  (6 – 4) Do operations in innermost grouping symbols first. = 44 X 4  2 Do operations in parentheses. = 176  2 Multiply. = 88 Divide.

12. Order of Operations 1.Solve problems within grouping symbols. 2.Multiply or divide from left to right. 3.Add or subtract from left to right. Example 2 Find the value of 44 X 4  (6 – [2* 2]). 44 X 4  (6 – [2* 2]) = 44 X 4  (6 – 4) Do operations in innermost grouping symbols first. = 44 X 4  2 Do operations in parentheses. = 176  2 Multiply. = 88 Divide.