2.89*6.37+0.137*28.9+289*0.0226.
2.89*6.37+0.137*28.9+289*0.0226．
<gadget id="calculator">2.89 * 6.37</gadget>
<output>18.4093</output>

<gadget id="calculator">0.137 * 28.9</gadget>
<output>3.9593</output>

<gadget id="calculator">289 * 0.0226</gadget>
<output>6.5314</output>

<gadget id="calculator">18.4093 + 3.9593 + 6.5314</gadget>
<output>28.9</output>

<result>28.9</result>