This set of worksheets focuses on number formation, orientation, size and digit order for numbers from 101-130. I noticed on a recent baseline 1st grade assessment that roughly 10% of my students were having difficulty writing numbers over 100. One of the most common errors was 110 (1010 or 10010). This impacts their understanding of place value and ultimately their testing performance as it is incorrect. These worksheets can be used as independent practice, homework, remedial math practice, supplemental exit tickets or morning work.