Why didn't my student see division questions in the mental arithmetic module?

A pupil will only be presented with the Subtraction section if they have scored an
Addition score greater than 5 years. They will only be presented with the Multiplication
section if they have scored a Subtraction score greater than 7 years. Finally, a pupil will
only be presented with the Division section if they have scored a Multiplication score
greater than 8 years