1- Zero was invented in Babylon , India and Central America at different times . 2- Zero is not an ordinal number it cannot be placed as 1st , 2nd and 3rd . 3- Zero in time means “now” . For example when a rocket is about to take of , or when a foot race is about to start . 4- If you divide anything by itself , for example : 7 divided by 7 , the awnser will be one but if you do the same with a zero the awnser will be zero . 5- The number zero is a whole number , it is not a positive or a negative number , but it is a neutral number . 6- It is an integer . 7- Between 1 BC and 1 AD there is no year zero . 8- Zero is usually written with six line segments on the seven-segment displays of calculators , watches etc . 9- Zero is used to represent that number in numerals , for example the numeral of 1000 there is one time thousand plus zero hundred plus zero ten and plus zero units . 10- Ze