trong mot phep chia het co thuong bang 8, neu giu nguyen so chia va them vao so bi chia 5 don vi thi thong moi la 9 du1. tim so chia va so bi chia trong luc dau.
giai ro rang nha cac ban
GIup em voi chu so thich hop de dien vao o trong de 6 .......8<638 la so nao vay em gap lam
hieu hai so la 55.neu them vao 17va giu nguyen so bi tru thi hieuhai so do thay doi nhu the nao ?tinh hieu so do
tim 2 so co thuong bang 8 ,neu them vao so bi chia 18 don vi va giu nguyen so chia ta duoc thuong moi la 17
Trong mot phép chia hết có thuong bang 12. Nếu so chia khong thay doi, va cong thêm vao so bi chia 15 don vi thi thuong moi bang 14 so du la 3. Tim so bi chia luc dau.
tim 3 chu so biet rang chu so hang chuc bang1/2 chu so hang tram chu so hang don vi bang 1/4 chu so hang chuc so9 can tim la (cac ban giup minh nha) ^ ^
toan tren mang:cho a,b,c la 3 chu so khac nhau va khac0,co tong bang 4.Hay tim tong cua tat ca cac so 3 chu so khac nhau lap tu 3 chu so do.