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658 (369 342)用简便运算怎么算？

2025-03-19 21:46:50

推荐回答（5个）

回答（1）：

658+(369+342)用简便运算怎么算？
658+(369+342)
＝658+369+342
＝658+342+369
＝1000+369
＝1369

回答（2）：

658+（369+342）
=658+342+369
=1000+369
=1369
用到交换律。

回答（3）：

回答（4）：

回答（5）：

额，这是乘除法？还是加减法？说明白点，不然不好回答

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