DAY 141:

Today’s Challenge

One of our easier MATHELONA-style challenges, but still utilising the four arithmetic operations.  Replace the ◯’s with the digits 1, 2, 2, 3, 4, 4, 5 and 6 so both lines work out:

◯  +  ◯   =    6    =   ◯  ×  ◯
◯  –  ◯   =    2    =   ◯  ÷  ◯

If you enjoy this type of number puzzle, click this MATHELONA link for details of our 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

What is the difference between the two multiples of 7?

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Answers

. . . can be found when clicking this.

7puzzleblog

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