Colby wants to set square tiles on the top of a wooden box. the top of the box is a rectangle 7 1/2 inches long and 5 1/2 inches wide.
How many 1/2 inch tiles would Colby need to cover the top of the box?
How many 1/4 inch tiles would Colby need to cover the top box?
7 1/2 long and 5 1/2 wide is 15/2 long and 11/2 wide
so there would be 15 half inch tiles across and 11 half inch tiles up
(15)(11) = 165 half inch tiles
Colby would need twice as many 1/4 inch tiles across and up to cover the box
(30)(22) = 660 quarter inch tiles
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