Maths and reading resources for reception

[Luna9]

Hi

I would like to support my reception child English and maths learning at home. Can anybody please recommend online applications, websites, books and any other material you have found useful. The teacher said she is struggling with maths and not engaging in class when they are doing maths. She said her reading has improved; we Have been concentrating on reading but not maths. Teacher didn't disagree when I said she is behind compared to her peers.

Thank you