tim hieu cua so lon nhat co bon chu so va so be nhat co bon chu do ,biet rang tong cac chu so cua moi so do bang 15.

tong cua hai so bang so chan lon nhat co bon chu so giong nhau hieu cua hai so gap doi so le be nhat co bon chu so tim hai so do

tong cua hai so bang so chan lon nhat co bon chu so giong nhau hieu cua hai so gap doi so le be nhat co bon chu so tim hai so do

tim hai so co tong la so nho nhat co 4chu so sao cho khi chia so nay cho 1994 thi cho so du la so du lon nhat con hieu cua chung thi bang giua so lon nhat co bon chu so voi so lon nhất co hai chu so

tong cua hai so bang so chan lon nhat co bon chu so giong nhau hieu cua hai so gap doi so le be nhat co 4 chu so tim hai so do

Tim mot so neu lay so do tru di so lon nhat co bon chu so va co tong cac chu so bang 30  thi duoc so be nhat co 5 chu so

HSG

Tong cua bon so tu nhien la so lon nhat co 7 chu so .Neu xoa di chu so hang don vi cua so 1 thi duoc so 2. so thu 3 bang hieu cua so 1 va so 2.so be nhat la tich cua so be nhat co ba chu so va so lon nhat co bon chu so .tim so thu 4

2: ban An co 170vien bi gom 2 loai :bi xanh va bi do .Ban An nhan thay 1/9 so bi xanh bang 1/8 so bi do .hoi ban An co bao nhieu bi moi loai 

Tong cua bon so tu nhien la so lon nhat co bay chu so. Neu xoa di chu so hang don vi cua so thu nhat thi duoc so thu hai. So thu ba bang hieu cua so thu nhat va so thu hai. So thu nhat la tich cua so be nhat co ba chu so va so lon nhat co bon chu so. Tim so thu tu.

BAI5 VIET SO LON NHAT CO BON CHU SO MA TONG CAC CHU SO BANG 9, HIEU CHU SO HANG DON VI VA HANG NGHIN LA 5

BAI 5 VIET CAC SO CO 4 CHU SO, BIET MO SO DUNG SAU HON CHU SO DUNG TRUOC 2 DON VI(VI DU :1357)VA SAP SAP CHUNG THEO THU TU TANG DAN.