​This Year 3 Multiples of 100 Varied Fluency worksheet helps children learn to count in multiples of 100. Children will be encouraged to count forwards and backwards in multiples of 100. This resource also recaps that ten tens is the same as 100, as there is a question which partitions the numbers in a non-standard way.
The use of Base 10 and place value counters alongside this resource can help support your children to see the relationship between ten tens and 100.