Zero is a number that represents

*nothing*. Most scales start at zero. Zero is the number between positive and negative numbers.There are

*three*( 3 ) grapefruit in the picture. If you cut something into three pieces, you get thirds. The number before three is two. The number that comes after three is four.There are

*nine*sunglasses in the picture. The number before nine is eight. The number that comes after nine is ten.