A user pointed out that there was a mistake on the fourth grade page in fractions multiplication worksheets (integer times fraction multiplication). Problem #1 on each of the worksheets was wrong. This has been corrected.
Thanks to that user for pointing this out. Mistakes do happen when I’m converting these worksheets into .pdf format, so if anyone notices anything awry please shoot me a note so I can get it fixed.
On another note, since launching this experiment numbersheets worksheets have been downloaded over forty two thousand times, and the site has been accessed from nearly one hundred different countries – including Sudan, Macao, and the Isle of Man.