I’m giving you the first worksheet with adding three-digit numbers to practice. This is addition in column with no regrouping. This means that the summed units, tens or hundreds, are in the range 0 to 9.
When preparing this worksheet, I used a fairly large font to make the numbers clear to a larger group of students. The grid makes it easy to learn adding in column. It makes it easier to distinguish columns with units, tens and hundreds.
The first link leads to a student worksheet. No solution. The second link, on the other hand, leads to the version of the math worksheets with answers.