
9.75×5.8+97.5×0.43-0.975简便运算?
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9.75×5.8+97.5×0.43-0.975
=9.75x5.8+(9.75x10)x0.43-(9.75x0.1)
=9.75x5.8+9.75x4.3-9.75x0.1
=9.75x(5.8+4.3-0.1)
=9.75x(10.1-0.1)
=9.75x10
=97.5
=9.75x5.8+(9.75x10)x0.43-(9.75x0.1)
=9.75x5.8+9.75x4.3-9.75x0.1
=9.75x(5.8+4.3-0.1)
=9.75x(10.1-0.1)
=9.75x10
=97.5
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