阅读计算过程:313-22÷[(12)2-(-3+0.75)]×5原式=313-
题型:解答题
问题:
阅读计算过程: 3
原式=3
=3
=3
=3
回答下列问题: (1)步骤①错在______; (2)步骤①到步骤②错在______; (3)步骤②到步骤③错在______; (4)此题的正确结果是______. |
阅读计算过程: 3
原式=3
=3
=3
=3
回答下列问题: (1)步骤①错在______; (2)步骤①到步骤②错在______; (3)步骤②到步骤③错在______; (4)此题的正确结果是______. |