Toán Lớp 4: khi nhan moi so voi 32 mot ban da dat cac tich rieng thang cot nho chong phep cong nem co ket qua la 390.Hay tim tich dung cau phepnhan da cho
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Toán Lớp 4: khi nhan moi so voi 32 mot ban da dat cac tich rieng thang cot nho chong phep cong nem co ket qua la 390.Hay tim tich dung cau phepnhan da cho
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