For Your Mathematics Teachers: Genius Puzzles And Riddles [With Answers]

Link: Genius Puzzles and Riddles

One of the puzzles from there pages:

Quote:

Now is the time for you to memorize all the mathematical symbols you know because you will need them to solve the arrays of number we have placed below the question. You can use any amount of symbols in any order except such symbols that comprises of a number with them like cube root. Place the symbols in a manner that the equations stand valid.

0 0 0 = 6

1 1 1 = 6

2 + 2 + 2 = 6

3 3 3 = 6

4 4 4 = 6

5 5 5 = 6

6 6 6 = 6

7 7 7 = 6

8 8 8 = 6

9 9 9 = 6

I was able to solve all but the first two [Thought I had answered the second one but an alternate solution is listed: No peeking!]