37*19.8+6.3*198=how much.
37*19.8+6.3*198=多少．
<gadget id="calculator">37 * 19.8</gadget>
<output>732.6</output>

<gadget id="calculator">6.3 * 198</gadget>
<output>1_247.4</output>

<gadget id="calculator">732.6 + 1_247.4</gadget>
<output>1_980</output>

<result>1_980</result>