DAY 117:

Today’s Challenge

Can you replace the 12 ◯’s below with the numbers 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8, 10 so that all four lines work out arithmetically?

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

If you enjoy this type of number puzzle, click on this MATHELONA link.

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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 5th & 6th rows of the playing board contain the following fourteen numbers:

5     6     7     12     16     18     20     21     33     49     50     56     81     84

Which four different numbers have a sum of 100?

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Answers

. . . can be found when clicking this.

7puzzleblog

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