1 / 15

Understanding Order of Operations in Math

Learn the rules of operations, including addition, subtraction, multiplication, and division. Practice with examples to master the BEDMAS order: Brackets, Exponents, Division, Multiplication, Addition, Subtraction. Ensure everyone gets the same correct answers!

brunswick
Download Presentation

Understanding Order of Operations in Math

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Intro to Order of Operations(O-O-O) Math 7/8 COPY SLIDES WHEN YOU SEE THIS

  2. Evaluate the following: • 3 x 6 + 2 x 10 • What is your answer?

  3. Try Again! • Mr. and Mrs. Baker and their three children went to the movies. The cost for a child was $6.00 and the cost for an adult was $10.00. How much did the Baker family pay to go to the movies?

  4. Taking Another Look …at $10 each …at $6 each • 3 x 6 + 2 x 10 = $38 3 children… 2 adults… added to

  5. Order of Operations • When calculating equations with mixed operations(+, -, x, ) everyone must agree to follow the same rules; otherwise different people will get different answers. • Mathematicians have come up a set of rules. We call these rules, “Order of Operations”. • To help us remember the rules we use the word BEDMAS.

  6. BEDMAS~Order of Operation RulesRead Left to Right You complete all operations inside the brackets first. • B ~ Brackets • E ~ Exponents • D ~ Division • M ~ Multiplication • A ~ Addition • S ~ Subtraction You do ALL adding and subtracting in the order they appear. You do not do any + or – until you have completed all x and  You do ALL exponents in the order they appear. You do ALL x and  in the order they appear.

  7. Brackets • Brackets tell us that certain things belong together. What would you rather have?

  8. Brackets • Brackets also tell us to do what is inside first.

  9. What should be solved first? • 5 + 4 + 2 x 5 – 6 = • 5 + 4 + 2 x 5 – 6 = • 9  3 + 5 x 3 - 1 = • 9  3 + 5 x 3 - 1 = • 7 x 3 – (9 + 4) + 5 = • 7 x 3 – (9 + 4) + 5 =

  10. What should be solved first? • 6 – 4 + 6 + 16 = • 6 – 4 + 6 + 16 = • (6 – 4) + (7 x 6) + 10  5 = • (6 – 4) + (7 x 6) + 10  5 = • 40  4 - (3 + 5 x 2 - 7) = • 40  4 - (3 + 5 x 2 - 7) =

  11. What should be solved first? • 4 – 2 + 6 x 10  5 = • 4 – 2 + 6 x 10 5 = • 8  4 + (7 + 6) + 3 x 2 = • 8  4 + (7 + 6) + 3 x 2 = • (4  2 x 3 + 8) - 2 x 7 = • (4  2 x 3 + 8) - 2 x 7 =

  12. Evaluate the following: • (6 + 3) x 2 – 4 + 3 x 2 • (30 + 8) – 3 x (4 + 6) • (4 + 6 x 2 – 9) x 2 – 10 • 6 + 3 x 2  3 x 5 + 8  2 – 4 x 2 • 2 x (4 – 3 + 2) • (8 – 3) + 5 x 2

  13. Adding Brackets • 4 + 6 – 5 x 2 = 6 • 5 + 6 x 4 – 9 = 35 • 5 + 7 x 8 – 6 = 19 • 5 + 3 + 2 x 2 = 20

  14. Adding Brackets • 7 + 4 x 3 – 1 = 15 • 3 + 5 + 4 x 2 = 21 • 7 x 3 – 1 + 4 = 16 • 26 – 5 x 4  2 = 3 • 4 + 3 x 3 – 1 = 14

  15. Homework Questions • 2 x (3 x 7 ) – 5 • (15 – 5) + 5 x 3 • (6 x 23) – 10 • 5 + ( 6 + 33) • (10 + 9 – (4 x 7)  4)

More Related