The school needs to make jigsaw puzzles during the New Year's Day, and bought a total of 308 square decimeters of cardboard. A large pair of jigsaw puzzles requires 14 square decimeters of cardboard, and a pair of small jigsaw puzzles uses 10 square decimeters. If you make 12 sets of large jigsaw puzzles first, how many sets of small jigsaw puzzles can you make from the rest?
学校元旦期间要制作七巧板，共买来308平方分米卡纸，一副大七巧板要用14平方分米卡纸，一副小的要用10平方分米．如果先做12副大七巧板，剩下的做小七巧板可以做多少副？
<gadget id="calculator">14 * 12</gadget>
<output>168</output>

<gadget id="calculator">308 - 168</gadget>
<output>140</output>

<gadget id="calculator">140 / 10</gadget>
<output>14</output>

<result>14</result>