3. Teachers had 1 dollar. They paid 2 boxes of paper plates for 12¢ each, 3 boxes of plastic bookmarks for 33¢ altogether, and 12 bundles of rope for 27¢ altogether. How much money was left?(Please write the answer with unit.)
The total cost of paper plates: 2 boxes x 12¢ = 24¢
The total cost of plastic bookmarks: 33¢
The total cost of rope: 27¢
Total cost: 24¢ + 33¢ + 27¢ = 84¢
Money left: $1 - 84¢ = 16¢
Therefore, there was 16¢ left.