There is a log 12 meters long, if it is to be sawed into 3 meters each, how many times will it be sawed?
有一根圆木长12米，如果要锯成每段3米，共要锯多少次？
<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<result>3</result>