Here are last years SAT's papers to use for the last term of year 2. You could use them in a variety of ways.
a) Select a couple of questions from each paper per day to work through.
b) Choose a paper a week and break it down each day.
c) Choose a day which could be called "assessment day" and have a go at one of the papers.
When looking at the answers be sure to break down why it is right or wrong. Sometimes children can't explain how they have got to an answer which is vital if they are going to achieve mastery in a subject. So use these resources to really probe and ask children to explain why they think something then clear up the misconceptions.