DAY 26:

Today’s Challenge

From the numbers 50-100 inclusive, eliminate all multiples of 5, prime numbers, even numbers and multiples of 3. What is the sum of the two numbers that remain?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 3rd & 6th rows of the playing board contain the following fourteen numbers:

5   12   13   18   20   25   33   36   42   45   49   56   66   80

What is the difference between the two multiples of 10?

Make 26 Challenge

Can you arrive at 26 by inserting 2, 4, 5 and 8 into the gaps on both lines?

  •  ◯²+(◯×◯÷◯) = 26
  •  (◯+◯)×◯÷◯ = 26
  •  (◯+◯)×◯+◯ = 26

Answers can be found here.

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