A's number is 148, which is twice that of B's number. How much more is A's number than B's number?
甲数是148，是乙数的2倍，甲数比乙数多多少．
<gadget id="calculator">148 / 2</gadget>
<output>74</output>

<gadget id="calculator">148 - 74</gadget>
<output>74</output>

<result>74</result>