乘法快速计算特训

090611627276534642700×2
=
047579086223214285657×3
=
042453123368378264942×4
=
035546182186818551810×5
=
025251750879923059091×6
=
064398433768128057715×7
=
060981076666198863361×8
=
044591800587184169936×9
=
2:1812232545530692854002 3:1427372586696428569713 4:1698124934735130597684 5:1777309109340927590505 6:1515105052795383545466 7:4507890363768964040057 8:4878486133295909068888 9:4013262052846575294249