DAY 84:

Today’s Challenge

Follow these six steps:

  1.  Work out the sum of 3 and 5,
  2.  Calculate the difference between 3 and 5,
  3.  Find the product of the two answers in points 1 and 2,
  4.  Find the square root to your answer in point 3,
  5.  Add the answer in point 4 to your answer in point 1,
  6.  Subtract your answer in point 2 from the answer in point 5.

What is your answer after carrying out point 6?

The 7puzzle Challenge

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

The 2nd & 3rd rows contain the following fourteen numbers:

8   13   17   25   28   36   42   45   48   55   63   64   66   80

Which pair of numbers have a difference of 49?

Make 84 Challenge

Can you arrive at 84 by inserting 2, 3, 6 and 7 into the gaps on each line?

  •  (◯+◯)²+◯–◯² = 84
  •  (◯×◯+◯)× = 84
  •  [(◯–◯)²–◯]×◯ = 84

Answers can be found here.

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