Description
Help pupils to understand the systematic progression of our number system in 10s and 1s, but show that number names do not always follow along. Contains 66 self-correcting, interchangeable puzzle pieces. Age 5+.
Help pupils to understand the systematic progression of our number system in 10s and 1s, but show that number names do not always follow along. Contains 66 self-correcting, interchangeable puzzle pieces. Age 5+.