if gas cost $2.09 by mrs. Murphy's house how many gallons of gas can she purchase if she has $30 no partial gallons only full gallons

Question

Basic sixth grade math word problem

Answer 1

You could do this by long division, and when you get the answer in decimal (30/2.09), drop the remainder.

 

Or, you can estimate 30/2 = 15, and since you divided by something too small, use 14 gallons as an estimate.

A check, multiplying 2.09 times 14, tells you that would cost over $30, so then you drop the answer to 13 gallons