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320-【9×(35-20)的简便运算？

2025-03-15 04:33:34

推荐回答（3个）

回答1：

简便运算
320-【9×(35-20)】
=320-9x15
=320-135
=185

回答2：

320-【9×(35-20)】
=320-【9×35-9×20】
=320-【315-180】
=320-315+180
=5+180
=185

回答3：

320-【9×(35-20)去括号

=320-（9x15）
去括号
=320-135
=185

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