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News from Mathnasium of Milpitas

Math Tricks Percents for 25%, 50%, and 100%

Nov 9, 2021

Special percents” are easy to compute because they represent easy-to-calculate amounts.

0% means “none of it

25% means “a quarter of it

50% means “half of it

100% means “all of it

200% means “all of it, twice

To find 100% of 30 we take “all of it”. All of 30 is 30 and so

100% of 30 is 30.

To find 200% of 30 we take “all of it, twice”. All of 30 is 30, and double of 30 is 60. So,

200% of 30 is 60.

Click here for more practice problems!