Xiao Hong weighs 42 kg, 12 kg heavier than Xiao Ming, and Da Li weighs twice that of Xiao Ming. How many kilograms does Dali weigh?
小红体重42千克，比小明重12千克，大立的体重是小明的2倍．大立重多少千克？
<gadget id="calculator">42 - 12</gadget>
<output>30</output>

<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<result>60</result>