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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

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Doris · Answer 1 · 2020-10-30T03:18:03+00:00

Doris

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2020-10-30T03:18:03+00:00 October 30, 2020 at 3:18 am

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`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}`

giahuy · Answer 2 · 2020-10-30T03:18:16+00:00

giahuy

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2020-10-30T03:18:16+00:00 October 30, 2020 at 3:18 am

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Đáp án:

297,5

Giải thích các bước giải:

help-help-help-help-help-help