Hi dear! Fear towards maths is common in some kids. Even we faced this during our childhood. Other subjects except maths need to be studied and should be byheart. But when coming to maths, it only needs practice, not byhearting. More and more practice makes maths easier for children and make them feel maths is damn easy when compared to other subjects. For this, you only need to make them practice problems by sitting along with them. Teach them formulas and ask them to memorize formulas or you can teach derivation of formula given in textbooks. Before you sit to teach your child maths, you first look into textbooks and class notes of your child for model problems which makes your task easier. Teach them that, with practice, they can play with maths and throughout their fear of maths. This is my self experience.