Toán Lớp 4: xe thu nhat cho duoc 45 ta hang xe thu hai cho duoc 53 ta hang xe thu ba cho duoc so hang nhieu hon trung binh cong so ta hang cua 2 xe dau la 5 ta. Hoi xe thu ba cho duoc bao nhieu ta hang
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Toán Lớp 4: xe thu nhat cho duoc 45 ta hang xe thu hai cho duoc 53 ta hang xe thu ba cho duoc so hang nhieu hon trung binh cong so ta hang cua 2 xe dau la 5 ta. Hoi xe thu ba cho duoc bao nhieu ta hang
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