Cho hai so deu co hai chu so , tong cua hai so do bang 68 . neu ghep so be vao ben phai so lon va ghep so be vao ben trai so lon thi duoc hai so moi , hieu cua hai so moi bang 2178 tim hai so da cho
cho hai so co 2 chu so sao cho tong cua hai so do bang 78. neu ta dem so be ghep vao ben phai hoac ben trai so lon thi deu duoc so 4 chu so va hieu cua hai so co 4 chu so do la 594. tim 2 so
tong cua hai so bang 440 neu viet them chu so 4 vao ben trai so be thi duoc so lon. tim hai so do biet so be la mot so co 2 chu so.
tong cua hai so bang 440 neu viet them chu so 4 vao ben trai so be thi duoc so lon. tim hai so do biet so be la mot so co 2 chu so.
tong cua hai so bang bon trambon muoi sau neu viet them chu so 4 vao ben trai so be thi duoc so lon. tim hai so do biet so be la mot so co 2 chu so.
tim mot so co 2 chu so.biet rang neu viet them vao ben trai so do mot chu so 3 thi ta duoc so moi ma tong so da cho váo moi bang 414
1.tim 1 so biet neu viet them vao ben phai so do co 1 chu so 6 thi ta duoc 1 so moi hon so da cho la 888 don vi
2.cho 1 so co 2 chu so biet neu viet them 1 chu so n vao ca dang truoc va dang sau so do thi ta duoc 1 so moi co 4 chu so . So moi gap 21 lan so da cho . Tim so da cho va so n viet them
Tim mot so co ba chu so ,biet rang neu viet them chu so 2 vao ben trai so do thi duoc so moi ma tong cua so moi va so phai tim la 2254.
cho mot so co 2 chu so.Neu viet them chu so 4 vao ben trai so do thi duoc so moi.Tong cua so moi va so da cho bang 570.Tim so da cho