A steel plant produced 142.5 tons of steel in January, 18.68 tons less in February than in January, and 24.70 tons more in March than in February. How many tons of steel output in March?
一个钢铁厂一月份产钢142.5吨，二月份比一月份少生产18.68吨，三月份的产量比二月份增加了24.70吨．三月份的钢产量是多少吨？
<gadget id="calculator">142.5 - 18.68</gadget>
<output>123.82</output>

<gadget id="calculator">123.82 + 24.7</gadget>
<output>148.52</output>

<result>148.52</result>