5.6×43+56×5.7它的简便方法是运用乘法分配律
5.6×43+56×5.7
=56×4.3+56×5.7
=56×(4.3+5.7)
=56×10
=560
或者
5.6×43+56×5.7
=5.6×43+5.6×57
=5.6×(43+57)
=5.6×100
=560
原式=5.7×43+56×5.7-0.1×43
=5.7×(43+56+1-1)-0.1×43
=5.7×(100-1)-0.1×43
=570-5.7-4.3
=570-(5.7+4.3)
=570-10
=560
原式=56×4.3+56×5.7=56×(4.3+5.7)=56×10=560
5.6×43+56×5.7
=5.6×43+5.6×10×5.7
=5.6×(43+57)
=5.6×100
=560
5.6*43+56*5.7
=56*4.3+56*5.7
=56*(4.3+5.7)
=56*10
=560