During Year 1, the children need to learn how to count to and across 100, forwards and backwards, beginning with 0 or 1, or any given number. They also need to count, read and write numbers to 100 in multiples of 2's, 5's and 10's. This could be done anywhere, in the car, counting out the pegs, cutlery, socks or shoes, crayons or fruit and would be a real help to them in their Maths lessons. Writing their numbers correctly and the right way round would also help!
I know we're all busy, but a few minutes here and there can really make all the difference to your child's learning.