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能巧算的要巧算25×9-9×5

2025-03-16 08:18:00

推荐回答（4个）

回答1：

乘除法，在无括号时不分先后：42÷5×15=42×15÷5=42×3=126

回答2：

25×9-9×5
=(25-5)×9
=20×9
=180

回答3：

25×9-9×5
=（25-5）x9
=20x9
=180

回答4：

（25-5）*9

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