56×43+43×43的简便计算43×(56+43)=43×100=4300
56×43+43×43的简便计算解答56×43+43×43=43× (56+43)=43×(100_1)=4300-43=4257
=(56+43)×43=99×43=100×43-43=4300-43=4257
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