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  Number & Math Play

Stack 'Em Up
 
Q Kenny had an after-school job at the Pet Food Emporium. His boss told him to stack 35 cartons of dog food so that each row of cartons would have one more than the row above it. How many rows of cartons did Kenny have when he was finished?
 
 
A 7 rows. 8 cartons in the bottom row, 2 in the top.