Calculate how much 0.0495*2500-49.5*2.4+49*4.95=.
计算0.0495*2500-49.5*2.4+49*4.95=多少．
<gadget id="calculator">0.0495 * 2_500</gadget>
<output>123.75</output>

<gadget id="calculator">495 * 0.24</gadget>
<output>118.8</output>

<gadget id="calculator">51 * 4.95</gadget>
<output>252.45</output>

<gadget id="calculator">123.75 + 118.8 + 252.45</gadget>
<output>495</output>

<result>495</result>