0.9999x1.3-0.1111x2.7简便运算怎么做
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0.9999x1.3-0.1111x2.7=0.1111x9x1.3-0.1111x2.7=0.1111(9x1.3-2.7)
=0.1111x9=0.9999
=0.1111x9=0.9999
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=0.9999×1.3-0.1111×9×0.3
=0.9999×1.3-0.9999×0.3
=0.9999×（1.3-0.3)
=0.9999×1
=0.9999
=0.9999×1.3-0.9999×0.3
=0.9999×（1.3-0.3)
=0.9999×1
=0.9999
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0.9999×1.3-0.1111×2.7
=0.1111×9×1.3-0.1111×2.7
=0.1111×9×(1+0.3)–0.1111×2.7
=0.1111×(9+9×0.3)-0.1111×2.7
=0.1111×(9+2.7)-0.1111×2.7
=0.1111×(9+2.7-2.7)
=0.1111×9
=0.9999
=0.1111×9×1.3-0.1111×2.7
=0.1111×9×(1+0.3)–0.1111×2.7
=0.1111×(9+9×0.3)-0.1111×2.7
=0.1111×(9+2.7)-0.1111×2.7
=0.1111×(9+2.7-2.7)
=0.1111×9
=0.9999
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