Today’s Challenge
Start at 7 and subtract 0.1, then 0.2, then 0.3 . . . and so on. What is the first answer less than 1 you will arrive at, followed by the first negative number?
The 7puzzle Challenge
The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up to 84.
The 3rd & 7th rows contain the following fourteen numbers:
4 11 13 24 25 27 30 36 42 45 66 70 77 80
How many multiples of 3 are listed?
Make 256 Challenge
Can you arrive at 256 by inserting 2, 3, 4, 5 and 6 into the gaps below?
◯³×◯²×√(◯+◯–◯) = 256
Answers can be found here.
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