DAY 91:

Today’s Challenge

What is the total of all the square numbers from 1-100 inclusive?

The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from 2 up to 84.

The 6th & 7th rows of the playing board contain the following fourteen numbers:

4   5   11   12   18   20   24   27   30   33   49   56   70   77

List FIVE sets of three different numbers that all have a sum of 100.

Make 91 Challenge

Can you arrive at 91 by inserting 2, 4, 5 and 9 into the gaps on each line?

  •  (+◯)×(◯+◯) = 91
  •  ◯³+◯×(◯–◯) = 91
  •  ◯²×◯×√◯–◯ = 91

Answers can be found here.

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