There is a square orchard with an area of 1 hectare. If its sides are extended by 200 meters, how many hectares will the area of the orchard be increased?
有一个占地1公顷的正方形果园，如果它的边各延长200米，那么果园的面积增加多少公顷？
<gadget id="calculator">100 + 200</gadget>
<output>300</output>

<gadget id="calculator">300 * 300</gadget>
<output>90_000</output>

<gadget id="calculator">1 * 10_000</gadget>
<output>10_000</output>

<gadget id="calculator">90_000 - 10_000</gadget>
<output>80_000</output>

<gadget id="calculator">80_000 / 10_000</gadget>
<output>8</output>

<result>8</result>