There are a total of 98 peaches on the tree. The first monkey picked 45 peaches, and the second monkey picked the same number as the first monkey. How many peaches are left?
树上一共有98个桃子，第一只猴子摘了45个桃子，第二只跟第一只摘的同样多，还剩多少个桃子没有摘？
<gadget id="calculator">45 + 45</gadget>
<output>90</output>

<gadget id="calculator">98 - 90</gadget>
<output>8</output>

<result>8</result>