DAY 325

Today’s Challenge

Another number puzzle associated with my board game, Mathematically Possible, an excellent resource involving mental arithmetic and strategy. Further details can be found by clicking Mathematically Possible.

Using the numbers 1, 3 and 6 once each, with + – × ÷ available, which one of the following numbers is NOT mathematically possible to make?

2      4      6      8      10      12      15      18      21      24

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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 2nd & 4th columns of the playing board contain the following fourteen numbers:

2     3     6     10     16     20     33     42     45     48     63     70     72     77

Can you find three numbers from the list that have a sum of exactly 100?

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Answers

. . . can be found when clicking this.

7puzzleblog

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