Monthly Archives: July 2018

Weekend Website Updates

Fixed some wrong answers on the Solving quadratics by factorising vary and twist. I wrote some timed questions on rounding to multiples of ten and rounding to decimal places. I updated the timed questions page so that you can now change the font. Try it by clicking the font names underneath the yellow carousel. I’ve… Read More »

Robert Low: Why is subtraction so hard?

Really interesting article and worth a read Subtraction presents various problems to learners of mathematics, not least with the mechanics of hand calculating the result of subtracting one multi-digit number from another. But that’s not the kind of difficulty I’m interested in: I’m more interested here in the difficulties that arise when computations involving several… Read More »