4th grade math
United States · ages 9–10
Multi-digit arithmetic, factors and multiples, built on fluent facts.
What is expected
- Multiply a four-digit number by a one-digit number
- Find factor pairs and recognise prime and composite numbers
- Divide with remainders
- Compare and add fractions with like denominators
A summary of typical expectations, not an official curriculum document. Your child’s school is the authority on what they are covering.
Practise it
Number facts are the part that has to be automatic — everything else in the year is slower and harder without them.