一次进位的笔算乘法ppt课件.ppt
, (2), ,242=,3123=,124=,4132=,48,936,48,826, , , , , 3 ,18,3,4,5,2, :8324, 4 ., : 133,325, 5 .,183( ),?,54, : 20 2 .,115,6,0,3,241,4,4,6,9,1,9,6, :,1 4 3 在,3 1 4在,1 1 5 4,1 1 6 6,4 2,12 4,4 6 0,6 9 6, :, : ., , , 29 . 3 ., 29 3 293=2 9,3,2,7,8,87,(),: 87 , , 8 ., 112., , 8 112 1128= 112 8 ,1,6,9,8,896( ), 896 , , 41, 4 - 41 ,414=4 1 4 ,4,1,6,1,164(), 164 ,:, , ,: 77- 17-123,谢谢!,-,