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> hey anon, wanna give your opinion?
User avatar #49 - kirluu
Reply +11 123456789123345869
(01/20/2013) [-]
More like:
"You need to do this in your head. You won't have to use a calculator later anyway, so it's better to be able to do it in your head."

Higher Math levels:
> Use calculator for all equations, because otherwise will take too long.