Friday, November 5, 2010

Order of Operations


1) First thing you do is you must do brackets first and add them together.

2)Then is you must do exponents in your question and add those together as well.

3)Next if you have division and multiplication you should do that next from left to right which one you see first.

4) Last if you have add addition and subtraction, you should also start from left to right which one you see first

Eg. 2+4÷2x6=
\ / \ /
2+2x6 =
\ / \ /
2 + 12 =
\ /
14 =

homework:

Annie had been asked to calculate 1.7+6÷2. She claims the answer is 3.85. Do you agree? Explain why or why not.

  1. 1.7+6÷2
  2. 1.7+3 since 6÷2=3
  3. 1.7+3=.7

Put brackets in the following expression to get the largest value possible. What problem strategy did you use?

3 x 2.8 + 6.4 ÷ 4

Create a problem that could be solved using the following expression

2.5 + 1.25 + 5 x 1.6

here is a link that you can play

http://www.gamequarium.com/orderofoperations.html

Homework

. Annie has asked to calculate 1.7 + 6 ÷ 2. She claims the answer is 3.85. Do you agree? Explain why or why not.

1.7 +6÷ 2

1.7+3 since 6÷ 2= 3

1.7+3=4.7


2. Put brackets in the following expression to get the largest value possible. What problem strategy did you use?
3 x (2.8) + (6.4 ÷ 4)=10

3. Create a problem that could be solved using the following expression.
(2.5)+1.25+5x(1.6)=11.75

18 comments:

aaron873 said...
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Kamille817 said...
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ronalen 8-14 said...

hi aaron nice job on the blog you had what we did in class but you didnt answer the last 2 questions that are for home work. but over all you did good. ;)

beverly814 said...

Awesome job Aaron. You did mostly everything we did in class, i could really under stand on how to do bedmas now. :)

kassey814 said...

great job aaron I like your scribe post a lot because it helped me a lot maybe you can add a video next time.

jamodin 816 said...

The scribe was great aaron but you could have put a link and a video next time. Also you forgot to add the other two questions and the scribe was like what we did on friday

Sarah7-11 said...

Hi Aaron! I liked your scribe post but I think you should out a video next time maybe this video will help: http://www.youtube.com/watch?v=ClYdw4d4OmA. I also think that you should make your link bigger so people can notice it. You did a great job. thanks! :D

madeline816 said...

Hi, Aaron. Great job on your scribe post, but next time you should add a video( Here is a link: http://www.youtube.com/watch?v=piIcRV2dx7E&feature=channel).

Anonymous said...

Hi Aaron, good job on your scribe-post. I liked how you explained the rules of the order of operations.

hannah816 said...

Hi Aaron. Good scribe post! Your explanation of "bedmas" helped a lot, thanks! You should add a video next time. Good job!

irena814 said...

Hi Aaron, I really like your scribe post. I do agree on your answer for #1. It should be 4.7, not 3.85. And I really like the colours you put in there. But you are missing the solutions to numbers 2 and 3 for the homework questions. Other than that, I think you did an awesome job. Great work Aaron!

serena 814 said...

Aaron, Great job on your scribe post.
I liked how you explained about BEDMAS. It gave me a better understanding on BEDMAS. But on the homework question #2 I think you should put the brackets between the x and the 2.8 and between the 4 and the =, giving you the answer 13.2 which is bigger than 10.

steven711 said...

Nice job aaron but next time add a video like this one http://www.youtube.com/watch?v=pEz_Wn35098 good job though

karl817 said...

aaron nice scribe post but it would be good if there is a vid like this one try it good job http://www.youtube.com/watch?v=E_N1zvIDR2oe

Sompong8-17 said...

Hey, Aaron! Good job, but one thing you should have remembered is that you needed a video in this post. Here is a video you could use next time: http://www.youtube.com/watch?v=ClYdw4d4OmA

abby873 said...

hey. aaron! goodjob on your scribe-post. you really explained everything really well and you had detail. and make sure that your picture has the right spelling because I noticed that it said bodmas then 'bedmas' but goodjob anywaays (:

Jason 8-73 said...

Hi Aaron,liked your scribe.Heres a video that will help,http://www.youtube.com/watch?v=pEz_Wn35098
hope it helps

Chelese711 said...

nice job i dont think you have any improvement that i can say