157.8*5.78+2578*0.422=how much.
157.8*5.78+2578*0.422=多少．
<gadget id="calculator">157.8 * 5.78</gadget>
<output>912.084</output>

<gadget id="calculator">2_578 * 0.422</gadget>
<output>1_087.916</output>

<gadget id="calculator">912.084 + 1_087.916</gadget>
<output>2_000</output>

<result>2_000</result>