DAY 270

Today’s Challenge

Here’s a different MATHELONA challenge where your task is to make all three lines work out arithmetically by replacing the 12 ◯’s with digits from 0 to 5, each digit being inserted exactly twice each:

◯  +  ◯   =    0    =   ◯  –  ◯
◯  +  ◯   =    8    =   ◯  ×  ◯
◯  –  ◯   =    2    =   ◯  ÷  ◯

Details of our similar pocket book challenges can be found by clicking MATHELONA.

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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 4th & 6th rows contain the following fourteen numbers:

3     5     10     12     18     20     32     33     35     44     49     54     56     60

What is the sum of the multiples of 10?

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Answers

. . . can be found when clicking this.

7puzzleblog

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