We received correct solutions from Jenny Blood, Greenian Chiu, Rachael Chrystal, Jacqui Eaves & Sam Peace, from Year 9 at The Mount School, and Debbie Douglas, aged 12, from Forres Academy. Well done to you all.
24 x 57 = 1368
52 x 34 = 1768
37 x 58 = 2146
58 x 64 = 3712
53 x 92 = 4876
62 x 87 = 5394
Nobody could find a solution using 0 - 7. We can't either. If anybody would like to send us a proof that none exists we would be delighted to hear from you.
We'd also like to hear from anyone who would like to explain how they solved these problems. We are always interested in the reasoning that has helped you reach your solutions.