简便方法计算 4.4*28.6+41.1*5.6原式=(10-5.6)*28.6+41.1*5.6=10*28.6-5.6*28.6+41.1*5.6=286+(41.1-28.6)*5.6=286+12.5*5.6=286+12.5*8*0.7=286+70=356

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/11 18:38:38

简便方法计算 4.4*28.6+41.1*5.6原式=(10-5.6)*28.6+41.1*5.6=10*28.6-5.6*28.6+41.1*5.6=286+(41.1-28.6)*5.6=286+12.5*5.6=286+12.5*8*0.7=286+70=356
简便方法计算 4.4*28.6+41.1*5.6
原式=(10-5.6)*28.6+41.1*5.6
=10*28.6-5.6*28.6+41.1*5.6
=286+(41.1-28.6)*5.6
=286+12.5*5.6
=286+12.5*8*0.7
=286+70
=356

简便方法计算 4.4*28.6+41.1*5.6原式=(10-5.6)*28.6+41.1*5.6=10*28.6-5.6*28.6+41.1*5.6=286+(41.1-28.6)*5.6=286+12.5*5.6=286+12.5*8*0.7=286+70=356
原式=(10-5.6)*28.6+41.1*5.6
=10*28.6-5.6*28.6+41.1*5.6
=286+(41.1-28.6)*5.6
=286+12.5*5.6
=286+12.5*8*0.7
=286+700
=986