My neice has three children under the age of four.

2) When I was thirty years old, I lived in Bermuda.

When I was 30 years old, I lived in Bermuda.

3) Please turn to chapter four.

Please turn to Chapter Four.

4) Please turn to chapter eleven.

Please turn to Chapter Eleven.

5) This health bar has eight percent fiber in it.

no rewrite needed.

6) Class started at four thirty.

Class started at 4:30.

7) My height is five foot two.

My height is 5’2.

8) Gale’s new baby weighs five pounds eleven ounces.

need help with this one.

9) Jane’s children belong to a soccer league for 8 to eleven year old players.

Jane’s children belong to a soccer league for 8-11 year old players.