I was surprised the other day when my ds asked my dd a very basic sum, and she didn't know the answer. At the last parents evening, the teacher said she was good at numeracy. Later on i asked her some more sums eg. 2 add 1, and she struggled. When i showed her with raisins she could easily add and take away. Is this normal for a reception child? She is 5 in April. My ds has always been bizzarely good at maths.