How many times does it take to cut a 5 meter long steel bar into 5 decimeter long steel bars?
把5米长的钢条锯成5分米长的钢条，要锯多少次．
<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<result>9</result>