The calculator shows 54, so how many beads can be removed at most? What is the lowest level?
The maximum quantity is 98763, and the minimum quantity is 12306. If the beads refer to the numeric keys on the calculator, the calculator representing 54 can remove the largest numeric keys 5 and 4, and the remaining numeric keys are 3, 2, 1, 6, 7, 8 and 9. The maximum number that can be combined is 98763, and the minimum number is 12306.