The area to be painted in a room is about 80 square meters. Generally, 0.5 kg of paint is required per square meter, but it will be wasted during actual painting, so more preparations (1/10) should be prepared. How many kilograms of paint should be prepared actually?
某房间需粉刷的面积约80平方米，一般每平方米需用涂料0.5千克，但在实际粉刷时会有损耗，因此要多准备(1/10)，实际应准备多少千克涂料？
<gadget id="calculator">80 * 0.5</gadget>
<output>40</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">40 * (11/10)</gadget>
<output>44</output>

<result>44</result>