Các câu hỏi tương tự
tim hai so tu nhien co tog la 254 neu viet them mot chu so 0 vao ben phai so thu nhat va giu nguyen so thu hai thi dc tong moi la 362
tim hai so tu nhien co tong la 254 biet neu viet them mot chu so 0 vao ben phai so thu hai va giu nguyen so thu nhat thi duoc tong moi la 716
tim 2 so co tong 373. Neu viet tthem chu so 4 vao ben phai so thu nhat va giu nguyen so thu 2 thi tong moi la 890.
tim 1 so tu nhien,biet rang neu viet them chu so 0 vao tan cung ben phai so do thi duoc so moi ma tong cua so moi va so phai tim la 1463
2 so tu nhien co tong la 178 neu tang so thu nhat len 2 lan va giu nguyen thua so thu2 thi tong tang 35 don vi hoi thua so thu 2
tim mot so tu nhien biet rang neu them chu so 0 vao tan cung ben phai so do thi duoc so moi ma tong cua so moi va so phai tim la 143
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...
Đọc tiếp
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?
tim mot so tu nhien co hai chu so biet neu viet them mot chu so 0 vao ben phai va mot chu so 1 vao ben trai so do thi ta duoc so moi bang 50 la so phai tim
cho 2 so tu nhien co tong = 178 neu tang so thu nhat len 2 lan va giu nguyen so thu 2 thi tong tang them 35 don vi
tim so thu 2