# Math help?

posted by Moby

I am stuck.

Mike's truck engine holds 1 1/4 gallons of oil. If there are 3 quarts of oil in the engine now, how many more quarts of oil does Mike need to add to fill the engine to capacity?

Having trouble on do I subtract or?? what do I do

1. Moby

Needs 2 more quarts?? I feel this is right

2. Moo

Since 1 gallon is 4 quarts, 1 1/4 gallons is 5 quarts. (Just multiply by 4)
Now just subtract, 5-3=2

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