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# Math Puzzles Forum

Math Puzzle Forum: For math puzzles, brain teasers, word problems

1. ### The addition-subtraction puzzle (calculus)

• Replies: 5
• Views: 1,680
Jan 14th 2011, 10:40 AM
2. ### Easy calculus puzzle

• Replies: 5
• Views: 1,141
Jan 11th 2011, 08:30 AM
3. ### Fun little problem

• Replies: 15
• Views: 1,524
Jan 10th 2011, 07:02 PM
4. ### A hard riddle!

• Replies: 2
• Views: 988
Jan 8th 2011, 03:15 PM
5. ### Leaugue fixture puzzle

• Replies: 4
• Views: 878
Jan 8th 2011, 02:53 PM
6. ### Please help me out on this

• Replies: 4
• Views: 1,276
Jan 8th 2011, 07:11 AM
7. ### Nifty identity with a really cool proof

• Replies: 7
• Views: 1,083
Jan 7th 2011, 09:33 PM
8. ### fun question

• Replies: 1
• Views: 596
Jan 7th 2011, 08:41 PM
9. ### Geometrical contractions.

• Replies: 4
• Views: 718
Jan 6th 2011, 02:40 AM
10. ### Method of Partial Fractions - simplifying by formula

• Replies: 10
• Views: 2,876
Jan 4th 2011, 01:23 PM
11. ### Prime clusters

• Replies: 2
• Views: 911
Dec 21st 2010, 08:27 AM
12. ### CURRENTly...

• Replies: 1
• Views: 888
Dec 13th 2010, 04:49 PM
13. ### Voting algorithm?

• Replies: 2
• Views: 723
Dec 3rd 2010, 07:33 AM
14. ### River Crosser

• Replies: 4
• Views: 1,073
Nov 26th 2010, 07:16 AM
15. ### Cute stuff

• Replies: 14
• Views: 1,069
Nov 22nd 2010, 03:38 PM
16. ### Factorials versus triangle numbers

• Replies: 5
• Views: 1,945
Nov 22nd 2010, 12:30 PM
17. ### A back and forth prime type of problem

• Replies: 2
• Views: 611
Nov 10th 2010, 06:30 AM
18. ### Very tricky business

• Replies: 15
• Views: 1,409
Oct 29th 2010, 07:36 AM
19. ### Prime triples

• Replies: 0
• Views: 817
Oct 26th 2010, 07:50 AM
20. ### C(omplex) puzzle

• Replies: 2
• Views: 720
Oct 24th 2010, 11:19 AM
21. ### A new puzzle?

• Replies: 1
• Views: 829
Oct 23rd 2010, 12:29 PM
22. ### Here's another Egyptian fraction puzzle for you CB

• Replies: 5
• Views: 1,122
Oct 23rd 2010, 09:42 AM
23. ### Getting the limit

• Replies: 6
• Views: 621
Oct 17th 2010, 03:56 AM
24. ### cutting the cube

• Replies: 5
• Views: 6,356
Oct 15th 2010, 10:41 PM
25. ### 2011: Countdown Type Puzzle

• Replies: 1
• Views: 1,318
Oct 13th 2010, 08:42 AM
26. ### Logic Puzzle

• Replies: 1
• Views: 1,976
Oct 12th 2010, 06:39 PM
27. ### NFL Win loss records question

• Replies: 0
• Views: 858
Oct 8th 2010, 08:18 PM
28. ### Simple Percentage Logic

• Replies: 11
• Views: 2,121
Sep 29th 2010, 12:52 PM
29. ### A new prime number puzzle

• Replies: 3
• Views: 1,494
Sep 29th 2010, 08:30 AM

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