Các câu hỏi tương tự
Mot so co hai chu so bang 3 lan tong cac chu so cua no cong voi 7.Neu viet so do theo thu tu nguoc lai thi duoc so moi bang 7 lan tong cac chu so cua no cong voi 3.Tim so da cho
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?
cho so co 2 chu so neu ta viet them vao ben phai hoac ben trai chinh so do thi ta duoc so moi va tong cua so moi voi so da cho bang 2754 tim so da cho
cho so co 2 chu so neu lay tong cac chu so cong voi tich cac chu so cua so da cho thi bang chinh so do tim chu so hang don vi cua so da cho
tim mot so tu nhien co 2 chu so biet rang neu viet them chu so 0 xen vao giua hang chuc va hang don vi cua so da cho,neu viet them chu so 1 vao ben trai so vua nhan duoc thi so do lai tang len 3 lan
1) 2 nguoi cung lam chung mot cong viec , sau 12 gio thi hoan thanh . Neu nguoi thu nhat lam 1 minh 2/3 cong viec mat 10 gio . Hoi nguoi thu hai lam 1/3 cong viec thi mat bao lau ?
2) So N la so co 2 chu so chia het cho 3 . Neu viet xen so 0 vao giua 2 chu so do roi cong no voi 2 lan chu so hang chuc cua so N ta duoc so moi gap 9 lan so N . Tim so N ?
Cac ban giai duoc bai nao thi giai nhe !
tim mot so co hai chu so biet rang neu viet them chu so 0 xen vao giua chu so hang chuc va hang don vi cua so do ta duoc so moi va neu viet them chu so hai vao ben trai so moi thi ta duoc mot so gap 6 lan so moi do
Giai bai toan nay ho minh voi tim 1 so co 4 chu so biet rang neu viet cac chu so cua no theo thu tu nguoc lai thi ta duoc mot so bang 4 lan so da cho?
tim so tu nhien co 2 chu so biet rang neu viet chu so 0 xen giua chu so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so can tim . Neu viet them chu so 1 vao ben trai so vua nhan duoc thi so do gap len 3 lan . So can tim la