The school bought two sets of chess and a football. A pair of chess was 3 yuan, 80 cents and 6 cents, and a football was 43 yuan and 50 cents. How much more is it to buy a football than a chess?
学校买了两副象棋和一个足球，一副象棋3元8角6分，一个足球43元5角，买足球比买象棋多用多少钱？
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">43 + (1/2)</gadget>
<output>87/2 = around 43.5</output>

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">6 / 100</gadget>
<output>3/50 = around 0.06</output>

<gadget id="calculator">3 + (4/5) + (3/50)</gadget>
<output>193/50 = around 3.86</output>

<gadget id="calculator">(193/50) * 2</gadget>
<output>193/25 = around 7.72</output>

<gadget id="calculator">(87/2) - (193/25)</gadget>
<output>1_789/50 = around 35.78</output>

<result>1_789/50 = around 35.78</result>