3/5×2.8+2.7×3/5用简便方法怎么做?
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这道题的简便计算具体过程如下:
3/5x2.8+2.7x3/5
=3/5x(2.8+2.7)
=3/5×5.5
=3.3
3/5x2.8+2.7x3/5
=3/5x(2.8+2.7)
=3/5×5.5
=3.3
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3/5×2.8+2.7×3/5简便方法:
3/5×2.8+2.7×3/5
=3/5×(2.8+2.7)
=3/5×5.5
=3×1.1
=3.3
3/5×2.8+2.7×3/5=3.3。
3/5×2.8+2.7×3/5
=3/5×(2.8+2.7)
=3/5×5.5
=3×1.1
=3.3
3/5×2.8+2.7×3/5=3.3。
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3/5*2.8+2.7*3/5
=3/5*(2.7+2.8)
=3/5*5.5
=0.6*5.5
=3.3
这道题运用加法结合律
=3/5*(2.7+2.8)
=3/5*5.5
=0.6*5.5
=3.3
这道题运用加法结合律
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如下所示
3/5×2.8+2.7×3/5
=3/5×(2.8+2.7)
=3/5×5.5
=3.3
望采纳,谢谢!
3/5×2.8+2.7×3/5
=3/5×(2.8+2.7)
=3/5×5.5
=3.3
望采纳,谢谢!
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3/5Ⅹ2.8十2.7×3/5用简便方法怎么做?
解:3/5x2.8十2.7x3/5
=3/5×(2.8+2.7)
=3/5X5.5/1
=3/5x55/10
=33/10
解:3/5x2.8十2.7x3/5
=3/5×(2.8+2.7)
=3/5X5.5/1
=3/5x55/10
=33/10
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