28-(3.4+1.25*2.4)

28-(3.4+1.25*2.4) 3.4+1.25*2.4怎样简便计算 20×[(2.44-1.8)÷0.4+0.15] 28-(3.4+1.25×2.4) 2.55×720×[(2.44-1.8)÷0.4+0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×[15.5-(3.21+5.79)](31.8+3.2×4) ÷ 531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2 36.25÷4.25×9.9 5180－705×6 简算：1.25*7+1.25-2.4 1.25×2.4 简算 2.4×0.24×1.25 简便 ()除以1.25+3.4=4.2 8.4*28+8.4*72 1.25/5+0.25*20 4.75+8.4/2.4*20 7.6*0.25*4 【要求简便计算】 1.25×2.4的简便计算 2.4+7.6/2.5*1.25简算 简便算法2.4×1.25×0.3 625:x=1.25:2.4 (1.4+3.5/1.25)/2.4-0.35 2.4.5.1.3.4.help me! 3.6*1.25+1.25+3.4/0.8怎么用简便算法计算? 1.25乘3.4乘0.8简便运算 12.6*1.25+3.4/0.8+1.4*12.5 51.6÷[(3.4-1.25)×0.8]巧算