After the decimal point of number A moves two places to the left, it is equal to number B. Number B is 4.5. What is the sum of the two numbers of A and B?
甲数的小数点向左移动两位后就与乙数相等，乙数是4.5，甲乙两数的和是多少．
<gadget id="calculator">4.5 * 100</gadget>
<output>450</output>

<gadget id="calculator">450 + 4.5</gadget>
<output>454.5</output>

<result>454.5</result>