Aunt Li’s bank card has a deposit of 1,029.49 yuan. On April 30, she paid 186.8 yuan for water and electricity bills. On May 15, she received interest of 10.51 yuan. How much?
李大妈的银行卡上有存款1029.49元，4月30日缴掉水电费186.8元，5月15日收到利息10.51元，又扣去利息税2.1元，这时，李大妈的银行卡上有多少钱？
<gadget id="calculator">1_029.49 - 186.8</gadget>
<output>842.69</output>

<gadget id="calculator">10.51 - 2.1</gadget>
<output>8.41</output>

<gadget id="calculator">842.69 + 8.41</gadget>
<output>851.1</output>

<result>851.1</result>