DAY 63:

Today’s Challenge

Which is the only digit not represented when listing the square numbers from 10² to 19²?

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 & 7th rows contain the following fourteen numbers:

4   8   11   17   24   27   28   30   48   55   63   64   70   77

Find three different numbers that have a sum of 100.

Make 63 Challenge

Can you arrive at 63 by inserting 3, 3, 4 and 5 into the gaps on each line?

  •  ◯×◯×◯+ = 63
  •  ◯²×◯–× = 63
  •  ◯×◯×(◯+√◯) = 63

Answers can be found here.

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