According to relevant statistics, every 20 square meters of woods can absorb 80 grams of harmful gases in the air every year. How many grams of harmful gas can a forest belt of 1160 square meters absorb in a year?
据有关资料统计，每20平方米的树林每年可吸收空气中的有害气体80克．一条1160平方米的林带，一年可吸收有害气体多少克？
<gadget id="calculator">80 / 20</gadget>
<output>4</output>

<gadget id="calculator">4 * 1_160</gadget>
<output>4_640</output>

<result>4_640</result>