DAY 133:

Today’s Challenge

Group these ten numbers into five pairs so that the difference between the two numbers in each pair is exactly divisible by seven:

6    17    28    37    45    58    64    78    83    98

The 7puzzle Challenge

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

The 3rd & 6th rows of the playing board contain the following fourteen numbers:

5   12   13   18   20   25   33   36   42   45   49   56   66   80

From the list, what is the sum of the multiples of 7?

Make 133 Challenge

Can you arrive at 133 by inserting 10, 11, 13 and 20 into the gaps on each line?

  •  ◯×◯+◯–◯ = 133
  •  ◯×◯+√(◯–◯) = 133

Answers can be found here.

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