How many whole numbers between 700 and 900 begin 8? How many end with 8?

Sagot :

100 numbers begin with 8 (800-899), and 20 numbers end with 8 (708, 718, 728, 738, 748, 758, 768, 778, 788, 798; 808, 818, 828, 838, 848, 858, 868, 878, 888, 898).
begin of 8=100
end of 8=200