A number and 3. □The sum of 56 (□ represents a number) is 10, what is the maximum number of A?
甲数与3．□56(□代表一个数字)相加的和是10，甲数最大是多少．
<gadget id="calculator">10 - 3.056</gadget>
<output>6.944</output>

<result>6.944</result>