简便运算4.28+(5.72-3.99)
3个回答
展开全部
1.=4.28+5.72-3.99
=10-(4-0.01)
=10-4+0.01
=6+0.01
=6.01
2.=4.28+(5.72-4+0.01)
=4.28+1.73
=4.28+1.72+0.01
=6.01
望楼主采纳
=10-(4-0.01)
=10-4+0.01
=6+0.01
=6.01
2.=4.28+(5.72-4+0.01)
=4.28+1.73
=4.28+1.72+0.01
=6.01
望楼主采纳
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展开全部
=(4.28+5.72)-(4-0.01)
=10-4+0.01
=6.01
=10-4+0.01
=6.01
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