Today’s Challenge
. . . is a tricky 5puzzle-style question that’s a real mouth-watering prospect for the number puzzle enthusiast.
Using the numbers 1, 2, 3, 4 and 5 once each, with + – × ÷ available, it is possible to make the vast majority of numbers from 50-100.
For example, to arrive at 50 and 51, you could do:
- (4+3+2+1)×5 = 50,
- [(4×3–2)×5]+1 = 51, and so on . . .
Continuing your calculations, what is the LOWEST number in the range 52-100 it is not possible to make.
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 3rd & 6th columns of the playing board contain the following fourteen numbers:
4 7 12 15 17 30 35 36 40 49 54 64 80 81
How many square numbers are listed above?
Make 327 Challenge
Can you arrive at 327 by inserting 3, 5, 5, 7 and 7 into the gaps below?
◯×[(◯+◯)²–◯×◯] = 327
Answers can be found here.
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