Addition and Subtraction to 20 (1pc)
$5.90 ext. GST $6.49 inc. GST
Write your answer, rub the heat sensitive MAGIC black ink to reveal the correct answer, then wipe off and USE AGAIN!! These double sided PRESSOGRAMS feature an intriguing self-correcting technique that creates interest & enjoyment while encouraging children to learn. Great for group work in classrooms and can be used time & time again. Each board measures 35x25cm & is neatly laminated.