2.4x0.19+0.24x8.1 简便运算

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2.4x0.19+0.24x8.1简便运算2.4x0.19+0.24x8.1简便运算2.4x0.19+0.24x8.1简便运算依然范特西摩羯,2.4×0.19+0.24×8.1=0.24×1.9+0.

2.4x0.19+0.24x8.1 简便运算
2.4x0.19+0.24x8.1 简便运算

2.4x0.19+0.24x8.1 简便运算
依然范特西摩羯 ,
2.4×0.19+0.24×8.1
=0.24×1.9+0.24×8.1
=0.24×(1.9+8.1)
=0.24×10
=2.4

2.4x0.19+0.24x8.1
=2.4x0.19+2.4x0.1x8.1
=2.4x(0.19+0.81)
=2.4x1
=2.4

2.4x0.19+0.24x8.1
=2.4×0.19+2.4×0.81
=2.4×(0.19+0.91)
=2.4×1
=2.4
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2.4x0.19+0.24x8.1
=2.4x0.19+2.4x0.81
=2.4×(0.19+0.81)
=2.4×1
=2.4

原式=0.24*1.9+0.24*8.1=0.24(1.9+8.1)=2.4

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