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Mathematics, 25.10.2021 01:10 xoohaleey

Câu 1: (4,0 điểm) Thực hiện phép tính

a) : b) c) . d)

Câu 2: (4,0 điểm)

Số viên bi của ba bạn Hà, Hoa, Lan tỉ lệ với các số 3; 4; 2. Tính số viên bi của mỗi bạn, biết rằng ba bạn có tất cả 63 viên bi

Câu 3: (2,0 điểm)

1) Làm tròn các số sau đến chữ số thập phân thứ hai

a) 0,263 b) 13,419

2) Làm tròn các số sau đến hàng trăm

a ) 2353 b) 7918

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Answers: 3

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Câu 1: (4,0 điểm) Thực hiện phép tính

a) : b) c) . d)

Câu 2: (4,0 điểm)
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