You Jia has a colorful rubber band, cut 3.53 meters for Xiaohong, and left 7.9 meters for herself, how many meters is this rubber band originally?
尤佳同学有一根彩色皮筋，剪下3.53米给小红，自己还剩下7.9米，这跟皮筋原先有多少米长？
<gadget id="calculator">3.53 + 7.9</gadget>
<output>11.43</output>

<result>11.43</result>