Rita needs to measure out 3.5 gallons of vinegar for a science experiment However, her only measuring tool is a measuring cup that holds 1 cup. How many cups of vinegar does she need?

Question

I am confused on this can you please help me?

Answer 1

1 gallon = 16 cups

3.5 gallons = ______ cups

Answer 2

I think I understand now.

I would do 3.5 gal x 16 cups/1 gallon=56.0 cups

I could also add 16 cups + 16 cups+16 cups=48 cups+8 cups (8 would be half of 16)=56.0 cups

Thank you Ms. Sue for your help.