It is 1.2 kilometers from Beibei's home to the school. One day, she left home to go to school. When she walked 0.35 kilometers, she found that she had forgotten her pencil case, so she had to come back to pick up the pencil case and walk to school. How many kilometers did she walk to school this time?
贝贝家到学校是1.2千米．一天，她从家出发去学校，当她走了0.35千米时发现忘带文具盒，只好回来取了文具盒再走到学校．她这次上学共走了多少千米？
<gadget id="calculator">0.35 * 2</gadget>
<output>0.7</output>

<gadget id="calculator">1.2 + 0.7</gadget>
<output>1.9</output>

<result>1.9</result>