Asked by Matt

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?

I am confused on this can you please help me?
Answered by Ms. Sue
1 gallon = 16 cups

3.5 gallons = ______ cups

Answered by Matt
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.
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