When Xiaoxin calculates 357 + 9252-a / 12, he first calculates the subtraction in brackets, and the result is 370

Eh? Half brackets?
Is it 357 + (252-a / 12)?
If so, 357 + (252-a) / 12 = 370
First calculate a = 96
The result is 601
If there are only half brackets, then I don't know

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