In this Powerpoint are 10 great questions to give your kids a Maths Challenge. The questions are geared at Keystage 1 learners (Reception, Year 1 and 2).
Each slide also has the answer hidden under a cloud.
I group my kids and give each team a white board to write the answers down. Then they all have a turn to reveal. And they get points for each correct answer. They go crazy for it.