hieu cua  so thap phan la 16,75. neu doi dau phay cua so lon sang phai mot hang ma van giu nguyen so be thi hieu hai so la 306,1. tim  so thap phan do

hai so thap phan co hieu la16,5 neu di dau phay ua so lon ang phai 1 hang so a giu nguyen so be thi hieu 2 so la 306,1.tim 2 s thap phan do

hai so thap phan co tong la 38,18. Neu ta doi dau phay cua so lon sang ben phai mot hang va giu nguyen so be thi tong cua hai so thap phan luc do la 269,93 . Tim hai so thap phan do

2 so thap phan co hieu la 69,21.tim 2 so biet roi dau phay cua so nho sang ben phai 1 hang thi duoc so lon

hieu cua 2 so hap phan la 70.78 neu dich chuyen dau phay cua so tru sang ben phai 1 hang thi hieu moi la 30.64 tim 2 so thap phan do

tim hai so thap phan co tong la 26,54 biet neu doi dau phay so thu nhat sang phai 2 hang ta duoc so moi va biet hieu cua so moi va so thu hai la 1118.8

2 so thap phan co hieu la 13 .21 neu doi doi dau phay cua so be sang phai 1 hang roi cong voi so lon ta duoc 41.15 tim 2 so do

tong 2 so thap phan la 46,64. Neu doi dau phay cua so be sang ben phai 1 hang thi dc so lon. Tim so be 

cho hai so thap phan co hieu la 56,7.tim hai so do,biet rang neu chuyen dau phay cuaso lon sang ben trai mot hang ta duoc so nho.