Xinhua Primary School cultivated 400 square meters of green space last year, and this year plans to increase by 25% compared to last year. How many square meters of green space will be cultivated this year?
新华小学去年培植绿地400平方米，今年计划比去年增加25%，今年培植绿地多少平方米？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

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

<result>500</result>