Counting in 100s is great fun because it’s really easy.
If you look at the number 100 it is made up of 3 numbers or digits: 1, 0, 0
The last two numbers are 0s.
If you start with the number 100 and keep adding 100, all the numbers will end in two 0s.
Have a look:
100, 200, 300, 400, 500, 600, 700, 800, 900, 1000
See how easy that is? Now it's your turn to start the activities!