DAY 208:

Today’s Challenge

This puzzle invites you to use seven 2’s (2, 2, 2, 2, 2, 2 and 2), with + – × ÷ available, in some special calculations.

For instance, to make 1 and 2 you could simply do:

  •  2 + (2÷2)  (2÷2)  (2÷2)  =  1
  •  2 + 2 + 2 + 2  2  2  2  =  2

Can you show how to make 3, 4, and 5 when using seven 2’s?

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 2nd & 5th rows of the playing board contain the following fourteen numbers:

6    7    8    16    17    21    28    48    50    55    63    64    81    84

Which four numbers, when 2 is added to them, each become multiples of 5?

Make 208 Challenge

Can you arrive at 208 by inserting 4, 5, 6 and 8 into the gaps below?

(◯×◯+◯)×◯ = 208

Answers can be found here.

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