perplexus.info :: Just Math : Just a tiny addition

Just a tiny addition (Posted on 2014-11-18)

Wihout changing the order, add a single digit or a mathematical sign (but not both) to make true the expression below:

(71-1)*(71+1)=7

See The Solution Submitted by Ady TZIDON

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

re: digit 3?

| Comment 2 of 5 |

(In reply to digit 3? by Benny)

Could you please delete this comment?

Posted by Benny on 2014-11-18 23:46:43

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info