2X125X8X5
=125X8X2X5
=1000X10
=10000
125X897X8
=125X8X897
=1000X897
=897000
35X101
=35X(100+1)
=35X100+35X1
=3535
973X5X2
=973X10
=9730
68X99
=68X(100-1)
=68X100-68
=6800-68
=6732
请楼主采纳!
2X125X8X5
=125X8X2X5
=1000X10
=10000
125X897X8
=125X8X897
=1000X897
=897000
35X101
=35X(100+1)
=35X100+35X1
=3535
973X5X2
=973X10
=9730
68X99
=68X(100-1)
=68X100-68
=6800-68
=6732
请楼主采纳!