Calculation: 1.999*370-19.99*6+1999*0.69=how much.
计算：1.999*370-19.99*6+1999*0.69=多少．
<gadget id="calculator">1.999 * 370</gadget>
<output>739.63</output>

<gadget id="calculator">19.99 * 6</gadget>
<output>119.94</output>

<gadget id="calculator">739.63 - 119.94</gadget>
<output>619.69</output>

<gadget id="calculator">1_999 * 0.69</gadget>
<output>1_379.31</output>

<gadget id="calculator">619.69 + 1_379.31</gadget>
<output>1_999</output>

<result>1_999</result>