This standards-based workbook features focused instruction and progressive practice to help first graders stay ahead in math and enhance problem-solving skills! With systematic, thought-provoking practice designed to increase in complexity, the workbook focuses on fact families, adding and subtracting through 100, composing 2-D and 3-D shapes, place value, and measurement. Plus, it includes an answer key to accurately track comprehension. The 160-page workbook measures 8 3/8" x 10 7/8".