6.48+3.52/0.4的简便方法?
3个回答
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6.48+3.52÷0.4
=6.48+3.52÷(2/5)
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
=6.48+3.52÷(2/5)
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
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2022-03-30
展开全部
=6.48+3.52÷(2/5)
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
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2022-03-31
展开全部
=6.48+3.52÷(2/5)
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
=6.48+3.52×5/2
=6.48+3.52×2.5
=6.48+3.52×1+3.52×1.5
=(6.48+3.52)+1.76×2×1.5
=10+1.76×3
=10+5.28
=15.28
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评论
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