DAY 354

Today’s Challenge

. . . is a number puzzle to test your mental arithmetic, particularly those subtracting skills.

Start with the number 70 and keep on subtracting consecutive multiples of 0.5 (firstly 0.5, then 1, followed by 1.5, then 2 . . .) until your answer reaches a number less than 10. What is this number?

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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 2 up to 84.

The 1st & 3rd columns of the playing board contain the following fourteen numbers:

4     12     13     15     17     21     22     27     35     55     56     60     80     81

Which four different numbers have a sum of exactly 100?

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Answers

. . . can be found when clicking this.

7puzzleblog

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