There are 35 discs of "Tom and Jerry" in the video store, and the number of "Doraemon" is three times that of "Tom and Jerry". What math problems can you do? How to solve it?
音像店有《猫和老鼠》碟片35张，《机器猫》的张数是《猫和老鼠》的3倍．你能什么数学问题？怎样解决？
<gadget id="calculator">35 * 3</gadget>
<output>105</output>

<result>105</result>