DAY 335

Today’s Challenge

. . . is a tricky number puzzle from Mathematically Possible, my board game that is great for arithmetic and strategy:

Using the numbers 4, 5 and 10 once each, with + – × ÷ available, can you list the TEN different target numbers that are possible to achieve from 1 to 30 inclusive?

Got an answer? Why not leave a comment below or e-mail me at paul@7puzzle.com.

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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 3rd & 7th columns of the playing board contain the following fourteen numbers:

4     5     9     12     15     17     24     28     32     35     50     66     80     81

What is the product of the two prime numbers in the list?

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Answers

. . . can be found when clicking this.

7puzzleblog

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