First grade is where addition and subtraction facts become automatic, so these sheets stay inside the single digits: both numbers run from 0 to 9, which puts every sum at 18 or below and every difference at or above zero. Twenty-five problems fit on a page, enough for real practice without filling a sheet a six-year-old will not finish.
Addition and subtraction are both switched on so a page mixes the two, which is closer to how first graders are actually assessed than a page of one operation. Untick one to drill a single skill, or turn on the answer key so the page can be checked without working through it.
Twenty to twenty-five is a normal single sitting. If that is too long, switch Half Page on and each sheet becomes two shorter worksheets you can cut apart.
Yes. Untick the higher digits in either range - leaving only 0 to 5 in both gives facts within 10.
Yes, free to generate, download and print, with no account and no watermark.