DAY 144

Today’s Challenge

Another mini-MATHELONA challenge where you must replace the eight ◯’s below with the eight digits 1, 1, 1, 2, 2, 3, 4 and 5 so both lines work out arithmetically:

◯  +  ◯   =    3    =   ◯  –  ◯
◯  +  ◯   =    4    =   ◯  ×  ◯

Click MATHELONA for details of our popular pocket book of challenges.

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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 1st & 4th rows of the playing board contain the following fourteen numbers:

2     3     9     10     14     15     22     32     35     40     44     54     60     72

Which five numbers listed can be made by adding two others from the list?

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Answers

. . . can be found when clicking this.

7puzzleblog

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