My mother weighed 60kg last year, which is 5kg heavier than this year. How much is my mother's weight this year?
妈妈去年的体重是60千克，比今年重5千克，妈妈今年的体重是多少千克？
<gadget id="calculator">60 - 5</gadget>
<output>55</output>

<result>55</result>