DAY 83:

Today’s Challenge

What is the sum of all multiples of 0.5 from 10 to 20 inclusive?

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

How many multiples of 3 are on the list?

Make 83 Challenge

Can you arrive at 83 by inserting 2, 5, 8 and 9 into the gaps on each line?

  •  (◯+◯)×◯– = 83
  •  ◯²+◯×◯+ = 83
  •  [(◯+◯)²–√◯]÷◯ = 83

Answers can be found here.

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