In a 1000-meter race, when A is 100 meters away from the finish line, B is 190 meters away from the finish line. According to this calculation, when A reaches the end point, how many meters is B away from the end point?
在1000米赛跑中，当甲离终点100米时，乙离终点190米．照这样计算当甲到达终点时，乙离终点还有多少米？
<gadget id="calculator">1_000 - 190</gadget>
<output>810</output>

<gadget id="calculator">1_000 - 100</gadget>
<output>900</output>

<gadget id="calculator">810 / 900</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_000 * (9/10)</gadget>
<output>900</output>

<gadget id="calculator">1_000 - 900</gadget>
<output>100</output>

<result>100</result>