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copelandnaasia
copelandnaasia copelandnaasia
  • 13-03-2017
  • Mathematics
Answered

How can you quickly calculate 20 percent of any bill amount?

Verified Answer :

linjacks32 linjacks32
  • 13-03-2017

Take it and divide it by 5, or you can multiply it by 2.

Answer Link
apologiabiology
apologiabiology apologiabiology
  • 13-03-2017

10 times 2=20
so find 10% of the bill and double it

10% is easy because it is 1/10
just move decimal place over 1 palce

example
20% of 34.30
10% is 3.43
20% is double that or 6.86

Answer Link

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