5.5×7.7+33×0.55-5.5简便运算?
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解:5.5×7.7+33×0.55-5.5
=5.5×7.7+3.3×5.5-5.5
=5.5(7.7+3.3-1)
=5.5×10
=55
=5.5×7.7+3.3×5.5-5.5
=5.5(7.7+3.3-1)
=5.5×10
=55
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5 .5×7. 7+33×0.55-5.5
=5.5×7.7+5.5×3.3-5.5×1
=5.5×(7.7+3.3-1)
=5.5×10
=55
=5.5×7.7+5.5×3.3-5.5×1
=5.5×(7.7+3.3-1)
=5.5×10
=55
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展开全部
5.5×7.7+33×0.55-5.5
=5.5×7.7+3.3×5.5-5.5×1
=5.5×(7.7+3.3-1)
=5.5×10
=55
=5.5×7.7+3.3×5.5-5.5×1
=5.5×(7.7+3.3-1)
=5.5×10
=55
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=5.5x7.7+5.5x3.3-5.5x1
=5.5x(7.7+3.3-)
=5.5x10
=55
=5.5x(7.7+3.3-)
=5.5x10
=55
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