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Mathematics 20 Online
OpenStudy (smalls):

Find 80% of 25.

OpenStudy (anonymous):

20%

OpenStudy (anonymous):

0 because 10% equals 2.5. 2.5 *8=20

OpenStudy (anonymous):

I meant 20

OpenStudy (anonymous):

Heres a useful trick when doing percentages. If 100% of a number is just that number, then 10% of that number is just that number with the decimal place moved to the left. So 10% of 25 is 2.5 Now 80% is simply 10% times 8 right? so 2.5*8=? And your done!

OpenStudy (anonymous):

(80/100)*25

OpenStudy (anonymous):

@xartaan thats what I do. It is much simpler that way

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