The sum of A and B is 343.4. If the decimal point of A moves two places to the left, it is equal to B. Find B.
甲、乙两数的和是343.4，甲数的小数点向左移动两位就等于乙数，求乙数．
<gadget id="calculator">100 + 1</gadget>
<output>101</output>

<gadget id="calculator">343.4 / 101</gadget>
<output>3.4</output>

<result>3.4</result>