DAY 130:

Today’s Challenge

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

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

Click MATHELONA for details of similar challenges you can purchase from us.

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

3     8     10     17     28     32     35     44     48     54     55     60     63     64

What is the sum of the multiples of 5 shown above?

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Answers

. . . can be found when clicking this.

7puzzleblog

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