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Understanding the Order of Operations with PEMDAS

The Order of Operations is crucial for solving math problems involving multiple operations correctly. Recalling "Please Excuse My Dear Aunt Sally" helps you remember the sequence: Parentheses first, Exponents second, then Multiplication/Division from left to right, and finally Addition/Subtraction from left to right. This guide introduces you to PEMDAS and provides several practice problems. Mastering the order of operations will enhance your mathematical skills and problem-solving abilities.

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Understanding the Order of Operations with PEMDAS

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Presentation Transcript

  1. 43 Order of Operations  ( ) + - X

  2. The Order of Operations tells us how to do a math problem with more than one operation, in the correct order.

  3. Please Excuse My Dear Aunt Sally This will help to you to remember the order of operations.

  4. Please Excuse My Dear Aunt Sally P Parentheses ( ) E Exponents 43 M D Multiply x Divide  A S Add + Subtract -

  5. Please Excuse My Dear Aunt Sally Always do parentheses or any other grouping symbols 1st.

  6. Please Excuse My Dear Aunt Sally Exponents 43 Always do Exponents 2nd.

  7. Please Excuse My Dear Aunt Sally Multiply x Divide  Do multiplication and division 3rd, from left to right.

  8. Please Excuse My Dear Aunt Sally Add + Subtract - Do addition and subtraction 4th, from left to right.

  9. Let’s Try Some  Problems!

  10. PEMDAS 3+23- (9+1) 3+23- 10 3+8-10 11-10 1

  11. PEMDAS 3 (9+1) + 62 3(10)+62 3(10)+36 30+36 66

  12. PEMDAS 4+5 x (6-2) 4+5 x 4 4+20 24

  13. PEMDAS 4+ 10 x 23 -16 4+10 x 8 -16 4+ 80 -16 84-16 68

  14. PEMDAS 21 + 102 10 21+10010 21 + 10 31

  15. PEMDAS 10+72-2 x 5 10+49–2 x 5 10+49- 10 59 - 10 49

  16. PEMDAS 64  (9 x 3-19) 64(27 –19) 64 8 8

  17. Have fun doing the Order of  Operations!

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