Halloween Math Worksheets - Woo! Jr. Kids Activities Download our Halloween Worksheets Bundle of 185+ pages of Halloween activity pages all at once here and get our 90+ page Halloween Activity Book for FREE! Printable Halloween Easy Sudoku Worksheets for Kids. I have to watch myself while playing sudoku - it can be very addicting! My kids like it too - as long as they have enough hints so as to not get too frustrated.