tim mot so co hai chu so biet rang ta viet them chu so 1 va giua hai chu so cua so do ta duoc so moi gap 9 lan so phai tim. trai loi: so phai tim la ... cac giai luon nhe!

so lon gap 352 lan so be neu gap so be len 2 lan thi thuong cua phep chia so lon cho so be se la bao nhieu ?

GIAI CO LOI GIAI RO RANG NHE VA GIAI DUNG MA NHANH THI DUOC LIKE DO NGHE

minh co may bai toan violympic hoi kho minh ko giai duoc.Cac ban giai chi tiet giup minh nha:

1.tim 2 so tu nhien le biet tong cua chung bang 114 va giua chung co 42 so chan

2.tim 2 so tu nhien lien tiep biet tong cua chung bang 2016

3.tong 5 so le lien tiep bang 515 Tim so lon nhat

4.tim 2 so tu nhien le lien tiep co tong bang 222

5.tim 2 so tu nhien, biet tong cua chung bang 848 va giua chung co tat ca 81 so chan

giua 2 so chan co 15 so le tim hieu 2 so

giua 2 so chan co 18 so chan tim hieu hai so 

cac ban nho lam ca cach giai ra cho minh nhe ratcam on ca ban

Trung binh cong cua 2 so tu nhien la 117 .Tim hai so do biet rang neu viet them chu so 1 vao ben trai so be thi duoc so lon .mong cac ban giai bai toan giup minh nhe va co ca loi van nha moi nguoi ?

tim 2 so chan biet so be bang1 phan 3 so lon va giua chung co 7 so chan

2 so co hieu la 9,12 , neu doi dau phay cua so be sang phai 1 hang , roi lay hieu giua so lon ta duoc 61,04 . tim 2 so

giai giup nhe

tong cua hai so lon nhat co ba chu so khac nhau . tim so be , biet rang neu gap doi so be thi duoc so lon .

              lam bai giai cho mnh nhe

tim 2 so chan biet so be bang 5/9 so lon va giua chung co 8 so le