All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
No Addition Allowed (Posted on 2009-12-14) Difficulty: 3 of 5
Without using addition, make five 6s to equal 30.
Without using addition, make six 7s to equal 42.

The calculations should be exact (no rounding functions). Any common symbols or operators other than addition are allowed.

Replacing addition with subtracting a negative is NOT a solution.

See The Solution Submitted by Brian Smith    
Rating: 2.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: triangular numbersBrian Smith2009-12-15 14:38:10
Some Thoughtstriangular numbersAdy TZIDON2009-12-15 05:56:22
SolutionAdditional SolutionsJustin2009-12-14 20:06:50
SolutionSolutionsDej Mar2009-12-14 17:22:21
SolutionsolutionCharlie2009-12-14 14:55:52
SolutionPOSSIBLE SOLUTIONSAdy TZIDON2009-12-14 13:44:57
Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information