10 is what % of 25?
10 is what % of 30?
Bo's Method
Divide 100 by the whole #. Multiply the part # by that result.
Grace's Method
Put into fraction (part/whole) = give a decimal. Multiply decimal by 100 to get %.
General Rule:
Divide the 100 by the whole #
Multiply that part # by that result
Homework: L-21 page 91 #1-7, page 34 #66-68
