陈小龙数学 乘法快速计算特训

093134985505615016303×2
=
095591468255815585947×3
=
010272474401121021812×4
=
055611076187343597120×5
=
035134860153413582977×6
=
028533078312921608789×7
=
032025774321898001406×8
=
047767282606190046190×9
=
2:1862699710112300326062 3:2867744047674467578413 4:410898976044840872484 5:2780553809367179856005 6:2108091609204814978626 7:1997315481904512615237 8:2562061945751840112488 9:4299055434557104157109