62点3×1点7-0点23×1点7-0点23×17?
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62.3×1.7-0.23×1.7
-0.23×17
=62.3×1.7-0.23×1.7-0.23×17×1
=62.3×1.7-0.23×1.7-0.23×10×17×0.1
=(62.3-0.23-2.3)×1.7
=59.77×1.7
=101.609
-0.23×17
=62.3×1.7-0.23×1.7-0.23×17×1
=62.3×1.7-0.23×1.7-0.23×10×17×0.1
=(62.3-0.23-2.3)×1.7
=59.77×1.7
=101.609
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62.3*1.7-0.23*1.7-0.23*17
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原式=62.3×1.7-0.23×1.7-0.23×10×1.7
=62.3×1.7-0.23×1.7-2.3×1.7
=(62.3-2.3-0.23)×1.7
=(60-0.23)×(2-0.3)
=60×2-60×0.3-0.23×2+0.23×0.3
=120-18-0.46+0.069
=101.609
=62.3×1.7-0.23×1.7-2.3×1.7
=(62.3-2.3-0.23)×1.7
=(60-0.23)×(2-0.3)
=60×2-60×0.3-0.23×2+0.23×0.3
=120-18-0.46+0.069
=101.609
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