Most of the parents as well as children have quite a fear of mathematics taught at primary level. The standard strength of a classroom in any of the primary school is around 30 pupils. It may not be that conducive for young children to comprehend and grasp the concepts of maths among so many pupils.
The only alternate is there to put your children for primary school maths tuition, where the concepts are reinforced in a much smaller sizes of four pupils in each batch. It allows the young minds to gain knowledge with the help of peer interaction and gain from individual attention from trained teachers.