OK since I got impressed at DS's memory and then realised that most 3 year olds are excellent at playing games of pairs I'm loath to have a proud moment
But DS who will be 4 in February can add and subtract .. is that normal
he's been doing it for a couple of months .. as in if I ask him if he has a number under 10 and we ask him to take away any number he can normally work out how many is left quite quickly
he can add up to around 15 too
he just asked for 4 fish fingers .. and said "If I have one more that will be 5, and then if I have 5 more that will be 10"
So .. normal development or is he good with numbers?