一道数字题,谁会?叔叔阿姨帮助一下。(小灿\张淑问)答:716-71-6=639,718-71-8=639,719-71-9=639,720-72-0=648,721-72-1=648723-72-3=648,724-72-4=648,725-72-5=648,726-72-6=648,728-72-8=648729-72-9=648,730-73-0=657,731-73-1=657,732-73-2=657,734-73-4=657735-73-5=657,736-73-6=657,738-73-8=657,739-73-9=657,...