DAY 14:

Today’s Challenge

Insert the 12 numbers 1, 1, 2, 2, 2, 3, 5, 5, 6, 7, 8 and 8 so that all three lines work out arithmetically:

◯  +  ◯   =     6     =   ◯  –  ◯
◯  +  ◯   =    14    =   ◯  ×  ◯
◯  +  ◯    =    5     =   ◯  ÷  ◯

If you enjoyed trying this puzzle, visit our MATHELONA page for further details.

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 5th & 6th rows of the playing board contain the following fourteen numbers:

5   6   7   12   16   18   20   21   33   49   50   56   81   84

What is the difference between the highest and lowest odd numbers?

Make 14 Challenge

Can you arrive at 14 by inserting 2, 4, 5 and 5 into the gaps on each line?

  •  ◯+◯+◯+√◯ = 14
  •  ◯²–(◯+◯+◯) = 14
  •  (◯+÷◯)× = 14

Answers can be found here.

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