There is a parallelogram rice field with a base of 90 meters and a height of 85 meters. In the middle of the ground there is a trapezoidal pool with an upper base of 20 meters, a lower base of 25 meters and a height of 16 meters. The actual planting of this paddy field How many square meters is the area?
有一块平行四边形稻田地，底是90米，高是85米，在地的中间有一个上底是20米，下底是25米，高是16米的梯形水池，这块稻田地的实际种植面积是多少平方米？
<gadget id="calculator">90 * 85</gadget>
<output>7_650</output>

<gadget id="calculator">20 + 25</gadget>
<output>45</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">45 * 8</gadget>
<output>360</output>

<gadget id="calculator">7_650 - 360</gadget>
<output>7_290</output>

<result>7_290</result>