Math tricks to speed up the test!

[Ebete]

Sorry, if this is redundant but I REALLY need help in MATH. Basic simple math! The last math course I took was 11 years ago, and now althought I am able to get thru all phys. problems, when it gets to the very last calculation, I always manage to mess up. On a division, or a square or something simple like that.
For example how do you calculate 33/190;how do you get a quick answer? Sorry if this seems pathetic, I'm just not good w/ simple math and really do not remember how!

Anyone willing to share some quick triks? Thanks!!!!

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[DrChandy]

Sorry, if this is redundant but I REALLY need help in MATH. Basic simple math! The last math course I took was 11 years ago, and now althought I am able to get thru all phys. problems, when it gets to the very last calculation, I always manage to mess up. On a division, or a square or something simple like that.
For example how do you calculate 33/190;how do you get a quick answer? Sorry if this seems pathetic, I'm just not good w/ simple math and really do not remember how!

Anyone willing to share some quick triks? Thanks!!!!

You should read this post from someone with a similar question:

http://forums.studentdoctor.net/showthread.php?t=214893

 

[Kramer101]

Sorry, if this is redundant but I REALLY need help in MATH. Basic simple math! The last math course I took was 11 years ago, and now althought I am able to get thru all phys. problems, when it gets to the very last calculation, I always manage to mess up. On a division, or a square or something simple like that.
For example how do you calculate 33/190;how do you get a quick answer? Sorry if this seems pathetic, I'm just not good w/ simple math and really do not remember how!

Anyone willing to share some quick triks? Thanks!!!!

33/190 is about = to 30/190 = 3/19

This is around 3/20 which is .15 (actual answer is .17)

Just round to the nearest number that will make a nice, simple fraction and simplify.