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6.3_Percent #3_2012 - kutz
供稿人: Kutz
1. 5 is what percent of 20?
isof
=
=
 % 100
100
p
use p for the unknown
20•p  
Solve: criss cross and divide.
20
 520
p
=
=
=
5•100
20
  p
100
%
divide both sides bythe coefficient
Problem 1
2. 12 is what percent of 24?
p =      %
=
100
3. 7 is what percent of 35?
p =      %
=
100
4. 9 is what percent of 90?
p =      %
=
100
5. 5 is what percent of 20?
p =      %
=
100
6. What percent is 20 of 60?
p =      %
=
100
7. What percent of 12 is 9?
p =      %
=
100
8. What percent of 80 is 56?
p =      %
=
100
9. What percent of 50 is 20?
p =      %
=
100
10. What percent of 500 is 10?
p =      %
=
100
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