The number A is enlarged by 10 times to be equal to the number B. The sum of A and B is 33. What is the number A?
甲数扩大10倍等于乙数，甲、乙的和是33，则甲数是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">33 / 11</gadget>
<output>3</output>

<result>3</result>