如题所述
第1个回答 2023-08-25
102✖️72➖2✖️73
=102✖️72➖2✖️72-2
=72*100-2
=7198
=102✖️72➖2✖️72-2
=72*100-2
=7198
第2个回答 2023-06-23
102x72-2x73
=102x73-102-2x73
=(102-2)x73-102
=100x73-102
=7300-102
=7198
=102x73-102-2x73
=(102-2)x73-102
=100x73-102
=7300-102
=7198
第3个回答 2023-06-23
102×72-2×73
=102×72-2×(72+1)
=102×72-2×72-2
=(102-2)×72-2
=7200-2
=7198本回答被网友采纳
=102×72-2×(72+1)
=102×72-2×72-2
=(102-2)×72-2
=7200-2
=7198本回答被网友采纳
