What is the number that is 3 more than 6.4 after a number is enlarged 10 times?
一个数扩大10倍后比6.4多3，这个数是多少．
<gadget id="calculator">6.4 - 3</gadget>
<output>3.4</output>

<gadget id="calculator">3.4 / 10</gadget>
<output>0.34</output>

<result>0.34</result>