3.41-1.97+0.49-1.03的简便计算

fengsx12022-10-04 11:39:541条回答

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sojarr 共回答了17个问题 | 采纳率88.2%
3.41-1.97+0.49-1.03
=(3.41+0.49)-(1.97+1.03)
=3.9-3
=0.9
1年前

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