Hundreds board is a great mathematical tool that can be used to teach children:

How to count and sequence numbers from 1 to 100
Understand the concepts of "more than", "less than", "same as"
Count by "two's", "three's", "five's", etc
Learn about odd and even numbers
Learn to count backwards
Learn to recognise and compare patterns
Learn simple addition, subtraction and multiplication

Contents:

Multi-coloured hundreds board
100 Counters (50 yellow, 50 red)
Activity book

Age:

8 & Up