2×3+1=2×4=8
 
.(判斷對錯)
分析:計算出2×3+1=7,與2×4=8結果再進行比較即可.
解答:解:由分析可知:
2×3+1=7,2×4=8.
故答案為:×.
點評:這種類型的題一般先計算再進行判斷.
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