Question

Mary is making a gallon of iced which requires 5 cups of iced tea mix.She only has a 1/4 cup sized measuring cup.How many scoops will she have to get the correct amount of mix?

Answer 1

Divide 1/4 into 5.  You can obtain the same answer by multiplying 5 by 4/1, and that answer is 20.   

20 scoops, answer.

Answer 2

1/4 cup 4 times makes 1 cup.
1/4 cup 8 times makes 2 cups.
1/4 cup 12 times makes 3 cups
1/4 cup 4•4=16 times makes 4 cups so
1/4 cup 4•5=20 times makes 5 cups.

She will need to scoop 20 times