((7641-1467)/((8*8-1,10*10-2)))=how much.
((7641-1467)/((8*8-1,10*10-2)))=多少．
<gadget id="calculator">64 - 1</gadget>
<output>63</output>

<gadget id="calculator">100 - 2</gadget>
<output>98</output>

<gadget id="calculator">63 * 98</gadget>
<output>6_174</output>

<gadget id="calculator">6_174 / 6_174</gadget>
<output>1</output>

<result>1</result>