Sunday, November 7, 2010

order of operations 2

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

Answer:
i dont agree with her because 6 ÷ 2 = 3 , 3 + 1.7 = 4.7.


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

Answer :
(3 × 2.8) + 6.4 ÷ 4 = 10
3 × (2.8 + 6.4) ÷ 4 = 6.9
3 × 2.8 + (6.4 ÷ 4) = 10


3. Create a problem that could be solved using the following expression : 2.5 + 1.25 + 5 x 1.6 .

Answer :
Bob wanted to buy new shoe laces they were $2.50 , then he saw shoe cleaner he wanted it was $1.25 then he decided to buy 5 gel shoe liners they were $1.60 each . His total bill was 11.75 .


Here is a video to help you understand order of operations :





Here is a link to help you :
http://www.scweb4free.com/oper.html



Here is a picture to help you :

5 comments:

joeyt817 said...

Good Job Taylor! This will help me when i get stuck.

Shera816 said...

Great job Taylor! this will really help me and the other students.

alyshiad814 said...

nice job Taylor! this will really help me for my 2nd scribepost.

raeesa814 said...

good job Taylor! i really like your video..please excuse my dear aunt sally.

Nicole772 said...

Good Job Taylor! This will help me in our math classes.