Garden workers planted 4,320 trees this year, 24 more than three times the number of trees planted last year. How many trees were planted last year?
园林工人今年植树4320棵，比去年植树棵数的3倍还多24棵，去年植树多少棵？
<gadget id="calculator">4_320 - 24</gadget>
<output>4_296</output>

<gadget id="calculator">4_296 / 3</gadget>
<output>1_432</output>

<result>1_432</result>