如题所述
15.73-8.99
=15.73-(10-1.01)
=15.73-10+1.01
=5.73+1.01
=6.74
=15.73-(10-1.01)
=15.73-10+1.01
=5.73+1.01
=6.74
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第1个回答 2022-11-14
把8.99看做为9.00即
15.73-(9-0.01)
=15.73-9+0.01
=6.73+0.01
=6.74
15.73-(9-0.01)
=15.73-9+0.01
=6.73+0.01
=6.74
第2个回答 2022-11-14
15.73➖(9➖0.01)
=15.73➖9➕0.01
=6.73➕0.01
=6.74
=15.73➖9➕0.01
=6.73➕0.01
=6.74