Knowing you times tables in Year 5 and 6 is HUGELY important so make sure you prcatise as much as possible. If you don't yet have your Red and Green Badges, maybe it could be you personal challenge for this year!
In school, we use Times Tables Rock Stars to help us practise our quick recall. Why not play on it at home on a laptop or tablet. Can you achieve 'ROCK LEGEND' status?
Learning in Maths lessons can be helped out greatly by knowing and understanding the key number facts (times table and diving facts, place value knowledge, number bonds, square numbers, etc)!