Keep practising counting in 2s, 3s, 5s and 10s.
It is also useful to know and practise number bonds to numbers between 10 and 20 (eg. how many ways can you make 14?) as well as bonds in 10s to 100 (eg. 40 + 60).
Try playing the games on TOPMARKS (see below for the website link) - any of the activities in the Counting, Ordering and Sequencing, Place Value or Addition and Subtraction menus would provide consolidation and application of skills already covered this year and last.