From Littlefish products:
This application will make worksheets for Primary Maths. It will make and print one or more copies of worksheets and an answer sheet if desired each time 'Print' is clicked. It will randomise the numbers each time it makes a sheet. When you choose one of the main types of sheet, buttons will appear to let you specify what size of numbers etc. you wish to use.
New in version 2.3.2: Removed LittleFish URL from printed sheets. Added more types of sum, multiplication by "up to" a particular number.