After cutting 150 cm from a piece of wood, it is 30 cm shorter than the remaining 1.2 times, how many centimeters are left?
一根木料截去150厘米后，比剩下的1.2倍短30厘米，剩下多少厘米．
<gadget id="calculator">150 + 30</gadget>
<output>180</output>

<gadget id="calculator">180 / 1.2</gadget>
<output>150</output>

<result>150</result>