DAY 159

Today’s Challenge

Can you make all three lines work out arithmetically by replacing the nine ◯’s below with the nine numbers 1, 2, 3, 4, 5, 6, 10, 11 and 12?

◯   +   ◯   =   ◯
◯   +   ◯   =   ◯
◯   +   ◯   =   ◯

If you enjoy this type of number puzzle, click MATHELONA which will give you full information about our pocket book challenges.

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The 7puzzle Challenge

The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from up to 84.

The 1st & 5th rows contain the following fourteen numbers:

2     6     7     9     14     15     16     21     22     40     50     72     81     84

Which number, when 10 is added to it, becomes a multiple of 7?

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Answers

. . . can be found when clicking this.

7puzzleblog

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