hieu hai so la so chan lon nhat co 2 chu so tim so lon biet tong 2 so la 500
tong 2 so la so chan lon nhat co 4 chau so .tim 2 so do, biet hieu hai so do la so be nhat co 4 chu so
hieu 2 so la so chan lon nhat co 2 chu so
tim so lon biet tong 2 so la 58
tim 2 so khi biet tong la 11992 biet hieu cua chung la hieu cua so lon nhat co bon chu so va so lon nhat co ba chu so.
tong hai so la so lon nhat co hai chu so tim hieu hai so do biet neu xoa chu so 0 o ben phai so lon ta duoc so be
Tong hai so la so lon nhat co hai chu so, hieu hai so la so be nhat co hai chu so. Tim hai so do
tong hai so la so le lon nhat co hai chu so khac nhau . hieu cua hai so la 63 . tim so lon trong hai so do
tong cua hai lon nhat co 3 chu so chia het cho 8 la...
hieu cua hai so nho nhat co 3 chu so chia het cho 3
so lon la...
so be la...
bai 1 : Tim hieu cua hai so, biet rang so lon them 735 don vi va so ben them 449 don vi thi duoc hieu moi la 2000.
Bai 2 : Khi thuc hien phep tru hai so, mot ban da so y viet sai nhu sau : o so bi tru co hai chu socuoi cung la 35 da viet thanh 53 nen phep tru sai co ket qua la 1234. Tim hieu dung cu ahia so do.
Bai 3 : TIm mot so biet rang so do cong voi so lon nhat co ba chu so khac nhau roi cong tiep voi so be nhat co bon chu so khac nhau thi duoc so be nhat co nam chu so.
Bai 4 ; Cho ba chu so tu nhieu A ; B ; C. Biet rang tong cua A va B la 492 ; tongg cua B va C la 936 ; tong cua C va A la 714. Tim ba so do.
Bai 5 : HAi kho chu atat ca 2500 tan thoc. Sau khi lay ra o moi kho so tan thoc nhu sau. thi kho thu nhat con 800 tan va kho thu hai con 500 tan. Hoi luc dau moi kho chua bao nhieu tan thoc?
