Here are 20 questions just waiting for a class to complete them. Each of the problems is either subtraction or addition, under or up to 20. Learners complete each question, then exchange papers for a peer to grade. Answers are included.

Timed tests don't have to cause stress, they can be fun. To boost automaticity in solving the 3s times tables, this presentation is set up as a speed game. Learners will write out the answers as each 3s multiplication problem is...