It took 10 minutes to saw a piece of wood into 40 cm long pieces, and one minute to saw a piece. How many centimeters is this wood?
把一根木头锯成40厘米长的小段，一共用了10分钟，锯一段要一分钟．这根木头有多少厘米？
<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 40</gadget>
<output>440</output>

<result>440</result>