DAY 68:

Today’s Challenge

Can you arrive at the target number 105 by using the five numbers 1, 2, 3, 4 and 5 exactly once each, and with + – ×  ÷ available?

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 3rd & 5th rows contain the following fourteen numbers:

6   7   13   16   21   25   36   42   45   50   66   80   81   84

What is the difference between the highest multiple of 9 and highest multiple of 11?

Make 68 Challenge

Can you arrive at 68 by inserting 2, 3, 6 and 8 into the gaps on each line?

  •  (◯+◯)×+ = 68
  •  ◯²×(◯+◯+◯) = 68
  •  (◯+◯)×–◯² = 68

Answers can be found here.

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