DAY 88:

Today’s Challenge

In our latest MATHELONA challenge, can you place the 12 listed numbers into the 12 gaps so all three lines work out arithmetically?

0    1    1    2    2    3    4    5    6    7    8    9

◯  +  ◯   =     1     =   ◯  –  ◯
◯  +  ◯   =    12    =   ◯  ×  ◯
◯  +  ◯   =     3     =   ◯  ÷  ◯

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 4th & 5th rows of the playing board contain the following fourteen numbers:

3   6   7   10   16   21   32   35   44   50   54   60   81   84

Which two different numbers have a sum of 100?

Make 88 Challenge

Can you arrive at 88 by inserting 1, 4, 8 and 10 into the gaps on each line?

  •  ²–◯×(◯+◯) = 88
  •  (◯+◯)×◯–√◯ = 88
  •  (◯+◯)×◯׳ = 88

Answers can be found here.

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