All the little Ones - and a Half - (the little Ones often forget Half because she is so small) live a peaceful life. They have never seen a big number - big numbers are scary. One day a big bad Hundred comes along and threatens to take over the little Ones' house. Half has a plan - all the numbers must stand together and be counted. If they add up to a hundred, they will be as big as the Hundred and they can stand up to him. Five counts up all the numbers by filling in the correct number of squares for each number on a chart with a hundred squares. He nearly forgets to count Half. But Half makes all the difference; with her, the numbers add up to a hundred and a half - too big for Hundred to fight.