This standards-based workbook features focused instruction and progressive practice to help third graders stay ahead in math and enhance problem-solving skills! With systematic, thought-provoking practice designed to increase in complexity, the workbook focuses on adding and subtracting numbers with up to four digits, multiplying and dividing, fractions, perimeter and area, and graphs and line plots. Plus, it includes an answer key to accurately track comprehension. The 160-page workbook measures 8 3/8" x 10 7/8".