Xiaohong went to the bookstore to buy a storybook, and she was only 0.35 yuan short of buying a 5.8 yuan storybook. In the end, she only bought a 4.2 yuan storybook. How much money does she have left?
小红到书店买故事书，买5.8元的故事书还差0.35元，最后她只买了一本4.2元的．她还剩多少钱？
<gadget id="calculator">0.35 - 4.2</gadget>
<output>-3.85</output>

<gadget id="calculator">5.8 + (-3.85)</gadget>
<output>1.95</output>

<result>1.95</result>