help help help help help help Question help help help help help help in progress 0 Môn Toán Kiệt Gia 2 years 2020-10-30T03:16:28+00:00 2020-10-30T03:16:28+00:00 2 Answers 73 views 0
Answers ( )
`307-[(180-160):2+9]:2`
`=307-[20:2+9]:2`
`=307-[10+9]:2`
`=307-\frac{19}{2}`
`=\frac{614}{2}-\frac{19}{2}`
`=\frac{595}{2}`
Đáp án:
297,5
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