The Number Blocks is a unique set of wooden blocks shaped in the numerals 1 to 10. The 2 is twice as tall as 1, and 4 is two times as tall as 2, 10 is as tall as 2 plus 8, 4 plus 6. By combining the blocks in different ways and stacking them together, children can practise mathematical concepts such as addition, subtraction, number identification and number combinations. Children will enjoy stacking and manipulating the blocks to test their theories.