The olympiad still depends on interest. If the child is interested, it doesn't hurt to learn. After all, primary school is much easier, and junior high school is a little late. Olympic Mathematics can play an important role in developing students' thinking and laying a foundation for junior high school. Many schools also attach great importance to students' mathematical olympiad ability, and learning it will have an advantage over not learning it.

Children can learn in the third grade. It is suggested that children consciously expand their thinking when learning mathematics. You can look at the textbook help, and each chapter has exercises to expand your thinking to see if your child is really interested in Olympic Mathematics.

If children are not interested, they should not study, which requires high logical thinking ability.