Zhang Village planted 500 trees last spring, and the survival rate was 80%. The survival rate of the trees planted last autumn was 90%. It is known that 25 more trees were planted last spring than in autumn. How many trees were planted in this village last year?
张村去年春季植树500棵，成活率为80%，去年秋季植树的成活率为90%．已知去年春季植的树比秋季多死了25棵，这个村去年植树共种活了多少棵树？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">500 * (4/5)</gadget>
<output>400</output>

<gadget id="calculator">500 - 400</gadget>
<output>100</output>

<gadget id="calculator">100 - 25</gadget>
<output>75</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">75 / (1/10)</gadget>
<output>750</output>

<gadget id="calculator">750 * (9/10)</gadget>
<output>675</output>

<gadget id="calculator">400 + 675</gadget>
<output>1_075</output>

<result>1_075</result>