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tim tong cua tat ca so chan co bon chu so khi chias cho 5 du 2
tim tong cua cac so co hai chu so chia cho 4 du 2
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tong can tim la
tim tong tat ca cac so co hai chu so khi chia cho 2 du 1 chia cho 3 du 2 chia cho 5 du 3
bai 1: tim 2 so biet tong cua chung la 2011 va biet giua chung co tat ca 9 so chan
bai 2:tim 2 so biet tong cua chung la 571 va biet giua chung co tat ca 18 so chan
Tim tong cac so co 4 chu so chia cho 5 du 2.tong can tim
Cho 6 chu so 1,2,3,5,7,9.tim tong cua tat ca cac so co 5 chu so khac nhau a moi so deu chia het cho 5 duoc lap tu cac so tren.
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi...
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1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?
2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?
3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?
4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 thi ta duoc phan so moi bang 1/2 .Tim phan so do?
5. Hay cho biet co tat ca bao nhieu so co 3 chu so ma tong co chu so cua moi so bang 4 . co tat ca bao nhieu so thoa man?
Cho cac chu so 0,2,4,6
Hay viet tat ca cac so thap phan be hon 1 va moi so phai co ca bon chu so tren ( moi chu so chi viet mot lan)
Tinh tong cua tat ca cac so vua tim duoc
tim tong cac so chan lon nhat co 4 chu so khac nhau chia cho 5 du 2