Yicaidian bought 344 kilograms of pears, 16 kilograms less than 4.5 times that of watermelons. How many kilograms of watermelons did they buy?
一菜店购来梨344千克，比西瓜的4.5倍少16千克，购来西瓜多少千克？
<gadget id="calculator">344 + 16</gadget>
<output>360</output>

<gadget id="calculator">360 / 4.5</gadget>
<output>80</output>

<result>80</result>