Xiaoya weighs 40.5 kg, Xiao Ding Ding is 2.8 kg lighter than her, Xiaopang is 6.5 kg heavier than Xiao Ding Ding. How many kilograms does Xiaopang weigh?
小亚体重40.5千克，小丁丁比她轻2.8千克，小胖比小丁丁重6.5千克．小胖体重多少千克？
<gadget id="calculator">40.5 - 2.8</gadget>
<output>37.7</output>

<gadget id="calculator">37.7 + 6.5</gadget>
<output>44.2</output>

<result>44.2</result>