123+56.89-23.4等于多少
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123+56.89-23.4等于多少
123+56.89-23.4
=123+(56.89-23.4)
=123+33.49
=156.49
123+56.89-23.4=156.49
等于13
156.49
156.49
123+56.89-23.4等于多少
123+56.89-23.4
=123+(56.89-23.4)
=123+33.49
=156.49
123+56.89-23.4=156.49
等于13
156.49
156.49