Examples about order of operations
Download as PPT, PDF5 likes3,086 views
The document discusses the Order of Operations, which provides rules for evaluating mathematical expressions with multiple operations. It explains that the acronym PEMDAS - Parentheses, Exponents, Multiplication, Division, Addition, Subtraction - represents the correct order to evaluate terms from left to right. Several example problems are provided and worked through step-by-step to demonstrate how following the Order of Operations determines the correct result.
Examples about order of operations
- 1. Order ofOrder of OperationsOperations ( ) + 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. Add + Multiply x Divide ÷ Please Excuse My Dear Aunt Sally P E M D A S Parentheses ( ) Exponents 43
- 5. Please Excuse My Dear Aunt Sally Parentheses ( ) Always do parentheses 1st .
- 6. Please Excuse My Dear Aunt Sally Exponents 43 Always do Exponents 2nd .
- 7. Multiply x Divide ÷ Please Excuse My Dear Aunt Sally Do multiplication and division 3rd , from left to right.
- 8. Add + Subtract - Please Excuse My Dear Aunt Sally Do addition and subtraction 4th, from left to right.
- 9. Let’s TryLet’s Try SomeSome Problems!Problems!
- 11. PEMDAS 3 (9+1) + 36 3(10)+36 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 8 -16 4+10 x 8 -16 4+ 80 -16 84-16 68
- 14. PEMDAS 21 + 100÷ 10 21+100÷10 21 + 10 31
- 15. PEMDAS 40+48-2 x 5 40+48–2 x 5 40+48- 10 88 - 10 78
- 16. PEMDAS 64 ÷ (9 x 3-19) 64÷(27 –19) 64 ÷ 8 8
- 17. Have fun doingHave fun doing the Order ofthe Order of Operations!Operations!