To make a set of children's clothing, the jacket needs to use 1 meter of cloth, which is 0.15 meters more than the trousers. If 10 sets of children's clothing are made, how many meters of cloth will be used in total?
做一套儿童服装，上衣要用布1米，比裤子多用0.15米，如果做10套儿童服装，共要用布多少米？
<gadget id="calculator">1 - 0.15</gadget>
<output>0.85</output>

<gadget id="calculator">1 + 0.85</gadget>
<output>1.85</output>

<gadget id="calculator">1.85 * 10</gadget>
<output>18.5</output>

<result>18.5</result>