DAY 2:

Today’s Challenge

. . . is from a Japanese number puzzle designer.  Can you insert 1, 4, 6 and 9 into the four gaps on each line so both answers equal 10?

  •  ◯+◯–◯–◯ = 10
  •  (◯÷◯+◯)×◯ = 10

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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 1st & 2nd rows of the playing board contain the following fourteen numbers:

2     8     9     14     15     17     22     28     40     48     55     63     64     72

What is the total when adding together the prime numbers and square numbers?

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Answers

. . . can be found when clicking this.

7puzzleblog

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