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2024-01-31 20:12:23
vì 7<8
nên: 9/7 > 9/8
2024-01-31 20:11:04
2023-04-16 21:03:03
8,78 x 1,42 - 8,78 x 4,2
= 8,78 x (1,42-4,2)
= 8,78 x (-2,78)
= (-24,4084)
2023-04-16 18:45:57
diện tích trường tiểu học đó là
100x80=8000 (m^2)
biểu thị khu đất đó trên bản đồ có tỉ lệ 1:2000 là:
8000:2000=4000 (cm)
đáp số : 4000 cm
2023-04-16 18:40:43
2023-04-16 18:38:37
làm tròn số 67,675 đến hàng chữ số thập phân thứ hai ta được:
67,68