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Correct. The student multiplied each digit of 43 by 6, and I think they were then minded to do the same for the addition. Not an error I’ve ever seen before.

So the student got 258, thought they were adding 4, got 702 and didn’t notice that it was much too large. I’ll be honest: I was stumped!
March 6, 2025 at 11:14 PM
The art of simplifying the seemingly complex.
January 19, 2025 at 9:43 AM
Neither.
November 28, 2024 at 4:10 PM
At least, in the emulator, the round keys won't rotate in their sockets to give an irregular, lopsided look. I think that triggers me even more than the illogicality of SHIFT-7 for π or how clunky FORMAT is compared to the old S⇔D.
November 28, 2024 at 4:08 PM
Well predicted. This student had not, in fact, connected “eleven over four” with “eleven quarters”. It later turned out that he thought 2¾ means 2×¾, so obtaining 11/4 was undoubtedly by rote.
November 27, 2024 at 7:06 PM