ban lam danh so trang sach cua mot cuon sach day 284 trang bang day so chan 2 ,4,6,8 vv.biet moi chu so viet mat mot giay hoi ban lam can bao nhieu phut de danh trang sach b/ chu so thu 300 ma ban lam viet la chu so nao

Ban An viet day so 1,0,0,1,0,0,1,0,0,1 ...bat dau la so 1  tiep theo la so hai so 0 roi lại den so 1 hoi

so hang 31 la so 1 hay số 0

khi viet den so hang thu 100 thi ta viet bao nhieu so 1,bao nhieu so 0

Nguoi ta viet mot day so lien tiep tu 54  den 1937 . hoi chu so thu 1926 la chu so thu bao nhieu

khi nhan mot so voi 456 ban nam da viet nham so 456 la  hoi 654 tang len hay giam di bao nhieu don vi hoi tich dung cua 456 la bao nhieu ban nao co the giup toi giai bai toan lay

Ban Tam danh so trang cua mot cuon vo co 110 trang bang cach viet day so tu nhien 1,2,3,.....,110. Hoi ban Tam phai viet tat ca bao nhieu chu so ?

ta viet cac so co 3 so lien tiep nhau tao thanh mot day : 100101102103...Chu so thu 2012 cua day la bao nhieu ?

Nguoi ta viet cac so chan thanh 1 day 2468...Hoi chu so thu 2000 la bao nhieu

nguoi ta viet cac so tu nhien thanh day 123...2016.hoi chu so thu 1010 la chu so nao?day tren gom bao nhieu chu so

mot quan ban hang an trong buoi sang thu duoc 600.000dong .tinh ra da dc lai 25% so voi so tien von bo ra. hoi tien von la bao nhieu dong