198×0.51 1.25×2.5 0.8×72.4×12.5

198×0.51 1.25×2.5 0.8×72.4×12.5 0.8*72.4*12.5怎么简算 0.8×72.4×12.5 怎样简便运算. 0.8*72.4*12.5的简便方法 12.5×16+1.25×16+2.5×8+25×0.8 简便运算! 简便计算:1.25*12.5*0.8 104*2.5 1.25*(4-0.8) 4.2*0.5-1.6*0.52 12.5*32*0.25 0.48*99+0 9.9×2.3 12.5×0.8×4×0.5 2.5×0.32×1.25 5.3×10.1 简便计算,要有列式. (12.5+1.25+0.25)*0.8怎么简便 1.25×17.6+36÷0.8+2.64×12.5 0.8*(12.5-1.25)的简便计算 0.8*（12.5+1.25）简便 写完整