0.034X0.5X0.6怎么简便算

0.034X0.5X0.6怎么简便算 简便计算.0.034x0.5x0.6 0.5X0.8X0.04X12.5X0.6X2.5(简便计算）怎么算? 0.034x0.5x0.6的简便算法是什么 2.33x0.5x0.4x5怎么简便计算 0.35x0.5X0.6怎样简便计算 54.9x0.38怎么简便算 0.034x0.5x0.6 4.75x99+4.75 （简便计算） 四年级简便运算方法2.5x0.6-1.8x0.5的简便运算方法 3.7x0.15 +4.02,4.8—4.8x0.5 这两道题怎么简便计算? 52.5x0.63+3.7x0.5怎么简便计算?8点钟前!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 0.8X0.25X0.4X12.5用简便计算怎么写 8.45X0.27+8.45X0.63+0.845怎么简便计算? 0.5x0.9-0.5x0.2怎么简便计算 4.8x0.25用简便算法怎么算 54.9x0.38用简便计算怎么算 (6.52÷0.02x0.6)怎么用简便方法计算? 0.8x0.25x0.4x12.5简便计算啊