Each set comes in a sturdy storage box with lid, containing 10 plastic testing squares (1 for each of the tables 1 to 10), 250 multicoloured pegs, teacher notes, correction sheets and photocopiable recording tables. The child takes a square, pegs the 10 answers, corrects it using the master sheet and records his / her score. Objective is to bring individual scores up to 10/10 on each table. Excellent for timed pair tests and for consolidating accuracy and speed recall of all tables facts. The above square shows the Subtract 7 board. All above squares measure 195mm x 195mm x 12mm.