Right now you can get a FREE full-version download of Ultimate Math Invaders ($49.95 value) – a program designed to reinforce mental math in children ages 5-15.
This is limited to the first 10,000 – but I just nabbed mine at 9:45 am, so there are still copies available as of now.
You will need to register for the site, then open an email (mine went to spam) with a unique download link.
Ultimate Maths Invaders teaches kids aged 5 – 15 all their tables and number facts while building mental maths ability. Ultimate Maths Invaders extends able mathematicians, deepening and broadening their abilities with advanced challenges in fractions, decimals, percentages, numeration, counting, squares, square roots, powers and directed numbers.