
4322乘1233减4321乘1234怎么简算
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4322×1233-4321×1234
=(4321+1)×1233-4321×(1233+1)
=4321×1233+1×1233-4321×1233-4321×1
=1233-4321
=-3088
=(4321+1)×1233-4321×(1233+1)
=4321×1233+1×1233-4321×1233-4321×1
=1233-4321
=-3088
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