几道数学题,(简便方法）654321X123456-654322X1234558642X2468-8644X24662002X60066006-3003X400440041234X432143214321-4321X12341234123450X96+57X4+7X669999X1222-3333X6661989X1999-1988X20007654321X124567-77654322X1234566

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几道数学题,(简便方法）654321X123456-654322X1234558642X2468-8644X24662002X60066006-3003X400440041234X4321432143

几道数学题,(简便方法）654321X123456-654322X1234558642X2468-8644X24662002X60066006-3003X400440041234X432143214321-4321X12341234123450X96+57X4+7X669999X1222-3333X6661989X1999-1988X20007654321X124567-77654322X1234566
几道数学题,(简便方法）
654321X123456-654322X123455
8642X2468-8644X2466
2002X60066006-3003X40044004
1234X432143214321-4321X123412341234
50X96+57X4+7X66
9999X1222-3333X666
1989X1999-1988X2000
7654321X124567-77654322X1234566

几道数学题,(简便方法）654321X123456-654322X1234558642X2468-8644X24662002X60066006-3003X400440041234X432143214321-4321X12341234123450X96+57X4+7X669999X1222-3333X6661989X1999-1988X20007654321X124567-77654322X1234566
654321X123456-654322X123455=654321X123456-（654321+1)X(123456-1)=654321X123456-654321X123456-123456+654321+1=530866
8642X2468-8644X2466=8642X2468-(8642+2)X(2468-2)=8642X2468-8642X2468-2X2468+2X8642+4=2X(8642-2468)+4=12352
2002X60066006-3003X40044004=2X1001X6X10011001-3X1001X4X10011001=0
1234X432143214321-4321X123412341234=1234X4321X100010001-4321X1234X100010001=0

几道数学题,(简便方法）654321X123456-654322X1234558642X2468-8644X24662002X60066006-3003X400440041234X432143214321-4321X12341234123450X96+57X4+7X669999X1222-3333X6661989X1999-1988X20007654321X124567-77654322X1234566 4.9x1.02用简便方法计算 几道数学题,简便运算,①、1又1/4x7又7/13×8+8x1又1/13x1.25-125%x1又3/13×8+4又12/13÷4/5②、（1/6+1/10-4/15）x1.01x99③、（96又63/73+36又24/25）÷（32又21/73+12又8/25）注：这道题要用分数线形式来做,分数线 四道数学题,求用最简便的方法计算! 数学题（简便方法计算的）简单的.急死了~ AAXBB=CAAC这道数学题怎么做,这几个数我已知道,我做的太复杂给小孩讲不懂,要用简便方法 几道简单的数学题（能简算的要用简便的方法计算）六、计算（能简算的要用简便的方法计算）.（54 ＋913）÷9 276×27÷27.6 9.25×9.9＋92.5% 5.48＋8.73＋4.52＋1.27 9.7÷1.25÷0 1x1/2 +2x1/3 +3x1/4+ …… +8x1/9 +9x1/10简便方法计算 小学数学题用简便方法计算 五年级数学题简便方法计算. 数学题初一简便方法二元一次方程 用简便方法计算：1.1x1.1x1.1-1.1x1.1-0.1 请教几道高中数学题（平面向量和三角函数）,请简要说明解题方法 几道简便方法列竖式15x888＋32x0.125x0.2519.98x37－199.8x1.9＋1998x0.8225＋30＋35＋40…＋195＋200 12.35x37-123.5x1.9+1.235x820求简便方法 3.52-0.48x1.2用简便方法计算 5.64÷ 0.4+0.6x1.8用简便方法计算 用简便方法计算2.9x1.4+2x0.16