Thanksgiving Counting Backwards 0-100 Thanksgiving Counting Backwards 0–100 worksheets help children practice counting numbers in reverse order, starting from a larger number and moving down toward zero. This activity strengthens number sense, improves understanding of number order, and prepares students for more advanced math skills. In these worksheets, students may be asked to: Count backward from different starting numbers between 0–100 Fill in missing numbers in backward number sequences