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展开全部
3.5*5/4+1.25*27/18+3.8÷4/5
=3.2*5/4+1.25*3/2+3.8*5/4
=(3.2+3.8)*5/4+1.25*3/2
=7*5/4+1.25*3/2
=35/4+7.5/4
=42.5/4
=10.425
=3.2*5/4+1.25*3/2+3.8*5/4
=(3.2+3.8)*5/4+1.25*3/2
=7*5/4+1.25*3/2
=35/4+7.5/4
=42.5/4
=10.425
追答
3.5*5/4+1.25*27/18+3.8÷4*5
=3.5*5/4+5/4*1.5+3.2*5/4
=(3.5+1.5+3.8)*5/4
=8.8*5/4
=44/4
=11
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展开全部
=3.5x5/4+5/4x1.5+3.8x5/4
=(3.5+1.5+3.8)x5/4
=8.8x5/4
=2.2x5=11
=(3.5+1.5+3.8)x5/4
=8.8x5/4
=2.2x5=11
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展开全部
3.5×5/4+1.25×27/18+3.8÷4/5
=3.5×5/4+5/4×27/18+3.8x5/4
=(5/4)x(3.5+1.5+3.8)
=(5/4)x8.8
=5x2.2
=11
=3.5×5/4+5/4×27/18+3.8x5/4
=(5/4)x(3.5+1.5+3.8)
=(5/4)x8.8
=5x2.2
=11
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