DAY 67

Today’s Challenge

Can you correctly replace the 12 ◯’s below with 0, 1, 1, 2, 2, 3, 4, 5, 5, 8, 9 and 9?

◯  +  ◯   =    3    =   ◯  –  ◯
◯  +  ◯   =    8    =   ◯  ×  ◯
◯  +  ◯   =    1    =   ◯  ÷  ◯

Click MATHELONA for details on how to purchase our number puzzle pocket book.

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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 3rd & 5th rows contain the following fourteen numbers:

6     7     13     16     21     25     36     42     45     50     66     80     81     84

Which two numbers have a difference of 25?

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Answers

. . . can be found when clicking this.

7puzzleblog

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