and B are two numbers. It is known that the number of A is 100, which is 2 times more than the number of B. What is the B number?
甲乙两个数，已知甲数是100，比乙数的2倍还多2．乙数是几？
<gadget id="calculator">100 - 2</gadget>
<output>98</output>

<gadget id="calculator">98 / 2</gadget>
<output>49</output>

<result>49</result>