DAY 102

Today’s Challenge

Can you replace the 16 ◯’s below with the 16 numbers 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 7, 7, 8, 9, 9 so that all four lines work out arithmetically?

◯  +  ◯   =     9     =   ◯  +  ◯
◯  +  ◯   =     7     =   ◯  –  ◯
◯  +  ◯   =    12    =   ◯  ×  ◯
◯  +  ◯   =     6     =   ◯  ÷  ◯

If you enjoyed doing this number puzzle, click on MATHELONA for details of more.

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

6     7     8     16     17     21     28     48     50     55     63     64     81     84

What is the sum of the square numbers?

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Answers

. . . can be found when clicking this.

7puzzleblog

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