如题所述
简便计算
4.27-1.72+ 0.73-2.28
=(4.27+0.73)-(1.72+2.28)
=5-4
=1
4.27-1.72+ 0.73-2.28
=(4.27+0.73)-(1.72+2.28)
=5-4
=1
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第1个回答 2020-05-29
4.27-1.72+0.73-2.28
=(4.27+0.73)-(1.72+2.28)
=5-4
=1
望采纳。
=(4.27+0.73)-(1.72+2.28)
=5-4
=1
望采纳。