Mr. Wang has 145 yuan. He spent 78 yuan to buy a basketball and 22 yuan to buy a badminton racket. How much money is left? (answer in two ways)
王老师有145元钱，买篮球用去78元，买羽毛球拍用去22元，还剩下多少元？(用两种方法解答)
<gadget id="calculator">145 - 78 - 22</gadget>
<output>45</output>

<result>45</result>