A review worksheet for Iready Unit 3. It practices place value, addition and subtraction to 1,000. It provides an excellent review or quiz. The answer key is included. If you are looking for more practice with these skills, check out my unit 3 worksheets. Each week has 2 worksheets: Unit 3 Worksheets: Addition/Subtraction to 1,000If you want a year long practice bundle with 2 worksheets per week and unit reviews for $10, check out my bundle: Units 1-5 Weekly Worksheets