DAY 114:

Today’s Challenge

Can you place the numbers 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12 and 13 into the 12 gaps below so all four lines work out arithmetically?

◯   +   ◯   =   ◯
◯   +   ◯   =   ◯
◯   +   ◯   =   ◯
◯   +   ◯   =   ◯

Click this MATHELONA link for details of similar challenges.

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 & 4th rows of the playing board contain the following fourteen numbers:

3   10   13   25   32   35   36   42   44   45   54   60   66   80

List THREE different numbers that have a sum of 100.

Make 114 Challenge

Can you arrive at 114 by inserting 3, 6, 12 and 16 into the gaps on both lines?

  •  (◯+◯)×(◯–◯) = 114
  •  ◯²–◯×(◯–◯) = 114

Answers can be found here.

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