7.6×4.8+48×0.24=0.76×48+48×0.24=(0.76+0.24)×48=1×48=48 44.4×2.5-27.75×4=11.1×4×2.5-1.11×25×4=11.1×10-1.11×100=111-111=0
用简便方法计算7.6乘4.8加48乘0.24=?用简便方法解答44.4乘2.5减去27.75乘4=用简便方法解答谢谢!
7.6×4.8+48×0.24=0.76×48+48×0.24=(0.76+0.24)×48=1×48=48 44.4×2.5-27.75×4=11.1×4×2.5-1.11×25×4=11.1×10-1.11×100=111-111=0