My son used to go to a Maths tutor in Bedok for weekly tuition. I found it quite good because he goes there and practices frequently. It is quite a unique setting and group tuition but across different levels, but you get individual attention. The tutor is pretty experienced, about 25 years of experience(?) and also has school teaching experience. Quite affordable too and seems crowded on weekends. I would recommend going on weekdays, it's flexible timing available on all days. You can contact the tutor at : 97969278 (highlight to view number)