33.3×2.4—8×9.9,简便运算?
3个回答
2022-05-23
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解:
33.3x2.4-8x9.9
=33.3x(8x0.3)-8x9.9
=8x(33.3x0.3)-8x9.9
=8x9.99-8x9.9
=8x(9.99-9.9)
=8x0.09
=0.72
33.3x2.4-8x9.9
=33.3x(8x0.3)-8x9.9
=8x(33.3x0.3)-8x9.9
=8x9.99-8x9.9
=8x(9.99-9.9)
=8x0.09
=0.72
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展开全部
33.3×2.4—8×9.9
=33.3×2.4-8×0.3×33
=2.4×(33.3-33)
=2.4×0.3
=0.72
=33.3×2.4-8×0.3×33
=2.4×(33.3-33)
=2.4×0.3
=0.72
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