Today’s Challenge
Group the following numbers into three lots of three so the products of each of the triples are the same. What is this product?
3 4 5 6 7 8 28 30 35
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.
The 5th & 6th rows of the playing board contain the following fourteen numbers:
5 6 7 12 16 18 20 21 33 49 50 56 81 84
From the list, which pair of numbers have a sum of 77?
Make 221 Challenge
Can you arrive at 221 by inserting 4, 6, 9 and 12 into the gaps below?
(◯+◯)²–√(◯+◯) = 221
Answers can be found here.
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