146.5-23+46.5的简便运算
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146.5-23+46.5的简便运算
146.5-23+46.5的简便运算
146.5-23+46.5的简便运算
146.5-23+46.5
=146.5+46.5-23
=193-23
=170
146.5+48.5-23
146.5-23+46.5的简便运算
146.5-23+46.5的简便运算
146.5-23+46.5的简便运算
146.5-23+46.5
=146.5+46.5-23
=193-23
=170
146.5+48.5-23