The playground of Pleasant Goat Elementary School is 90 meters long and 45 meters wide. After renovation, the length has been increased by 10 meters and the width has been increased by 5 meters. How many square decimeters has the playground area increased now?
喜羊羊小学的操场长90米，宽45米，改造后，长增加10米，宽增加5米，现在操场面积比原来增加了多少平方分米？
<gadget id="calculator">90 + 10</gadget>
<output>100</output>

<gadget id="calculator">45 + 5</gadget>
<output>50</output>

<gadget id="calculator">100 * 50</gadget>
<output>5_000</output>

<gadget id="calculator">90 * 45</gadget>
<output>4_050</output>

<gadget id="calculator">5_000 - 4_050</gadget>
<output>950</output>

<result>950</result>