Calculate 2.9*0.45+0.29*4.2+0.029*13.
计算2.9*0.45+0.29*4.2+0.029*13．
<gadget id="calculator">2.9 * 0.45</gadget>
<output>1.305</output>

<gadget id="calculator">0.29 * 4.2</gadget>
<output>1.218</output>

<gadget id="calculator">0.029 * 13</gadget>
<output>0.377</output>

<gadget id="calculator">1.305 + 1.218 + 0.377</gadget>
<output>2.9</output>

<result>2.9</result>