Stopped by a friend today who did the ‘Take the Test’. She didn’t know there was another way to subtract that was very different from her method. She has made a mental note to make sure she went into her daughter’s school when maths evening available.
Great I thought – it has warned her that methods might be different, and she is going to do something about it! Good on her!

No sooner had this site gone live than we have a couple of friends over for dinner; discussion turns to my work, I tell them about Take the Test and it turns out (with much No, I do it that way and You don’t, do you?) that they subtract differently. What’s more, they’d been married for 25 years and never realised… I’m looking forward to hearing some more stories!