Year 4 is where you can really see children take off with their maths knowledge and understanding. They can deal with larger numbers, and show their understanding by partitioning, including numbers in the thousands. Place value is crucial to this understanding as is being able to multiply and divide by 10 and 100.
Fractions also play a much more important role, with much time spent on equivalent fractions (the key to all understanding of fractions) which can then lead on to addition, subtraction of fractions in later years.
Why not visit our Year 4 Counting and Number worksheets. There are over 30 in total, covering place value, partitioning, fractions, decimal fractions and negative numbers.