1. Simplify expressions by using order of operations. Order of Operations

2. Order of Operations Note: Write the initials for “Pretty easy rememberin g my dear Aunt Sally” and PERMDAS down the page! PP  E,R  M,D  A,S  Once written, follow the order step by step.

3. Order of Operations First Do: Example: You try:  Pretty = parenthesis  15 - (4+7) =  12 + (9-5) =

4. Order of Operations Second Do: Example: You try:

5. Order of Operations Third Do: Example: You try:  My = Multiply OR  Dear = divide Note: If both operations, multiplication and division, are in the same equation, go in left to right order and take the operation that comes first.  48 (4 x 2) x 3 =  12 + 20 5 x 2 =

6. Order of Operations Fourth Do: Example: You try:  Aunt = add OR  Sally = subtract Note: If both operations, add and subtract, are in the same equation, go in left to right order and take the operation that comes first.  15.7 - (4+7) + 6 =  12 - (9-5) + 7 =

7. Order of Operations You try:  4- 6 3 x 2 =  7 – (4 + 3) x 3 =  5 2 - (4+7) + 6 x 2 =  2 x (9-5) + 7 – 3 =

8. Assignment:  WS (evens and 17)