# Maths Puzzle

Ronnie48
Posers and Puzzles 22 Mar '06 17:25
1. 22 Mar '06 17:25
THIRTY- SIX MINUS TEN

3+3x3

5x5x0

20-15

2. 22 Mar '06 17:40
43
3. sonhouse
Fast and Curious
22 Mar '06 18:07
31
4. 22 Mar '06 18:101 edit
Originally posted by sonhouse
31
I concur.

Edit: On second thought, I don't. 100
5. leisurelysloth
Man of Steel
22 Mar '06 19:061 edit
Originally posted by Ronnie48
THIRTY- SIX MINUS TEN

3+3x3

5x5x0

20-15

3+3+3+5+5+0+20+15=54 ðŸ˜ž

EDIT: 3+3+3+5+5+0+2+0+1+5=27 ðŸ˜ž ðŸ˜ž

or 2+7=9 ðŸ˜ž ðŸ˜ž ðŸ˜ž

I give up!
6. 22 Mar '06 19:08
Originally posted by leisurelysloth
3+3+3+5+5+0+20+15=54 ðŸ˜ž
Thirty, six, and ten are numbers, too.
7. leisurelysloth
Man of Steel
22 Mar '06 19:131 edit
Originally posted by Nordlys
Thirty, six, and ten are numbers, too.
looks like letters to me ðŸ˜‰

EDIT: Cute whale miss (is it miss?) Nordlys.
8. 22 Mar '06 19:27
Originally posted by leisurelysloth
looks like letters to me ðŸ˜‰

EDIT: Cute whale miss (is it miss?) Nordlys.
From Wikipedia: "A number is an abstract entity that represents a count or measurement. A symbol for a number is called a numeral." A number written in letters is still a number.

Whalechicken's Faith Whale is cuter than mine, but I am still glad he shared this one with me.
9. leisurelysloth
Man of Steel
22 Mar '06 19:36
Originally posted by Nordlys
From Wikipedia: "A number is an abstract entity that represents a count or measurement. A symbol for a number is called a numeral." A number written in letters is still a number.

Whalechicken's Faith Whale is cuter than mine, but I am still glad he shared this one with me.
numeral n: a word or symbol representing a number -- Merriam-Webster Dictionary

In either case, I stand corrected. ðŸ˜³
10. sonhouse
Fast and Curious
22 Mar '06 20:40
54 if you don't count the written numbers as numbers or 100 if you do.
11. TheMaster37
Kupikupopo!
23 Mar '06 11:26
Don't forget the minus signs, possibly indicating negative nubers.
12. XanthosNZ
Cancerous Bus Crash
23 Mar '06 12:11
Originally posted by TheMaster37
Don't forget the minus signs, possibly indicating negative nubers.
We'll have none of that. We're using the Peano axioms in this thread.

1. 0 is a number.
2. The succesor of any number is a number.
3. If a and b are numbers and they have the same succesor then a equals b.
4. 0 is not the succesor of any number.
5. If S is a set containing 0, and the succesor of any number n is included in S then S contains all the numbers.

By rule 4 negative numbers are not numbers.
13. 23 Mar '06 15:32
Originally posted by XanthosNZ
We'll have none of that. We're using the Peano axioms in this thread.

1. 0 is a number.
2. The succesor of any number is a number.
3. If a and b are numbers and they have the same succesor then a equals b.
4. 0 is not the succesor of any number.
5. If [b]S
is a set containing 0, and the succesor of any number n ...[text shortened]... b]S[/b] then S contains all the numbers.

By rule 4 negative numbers are not numbers.[/b]
Ah, but the standard definition of the real number includes the axioms:

a. There is an additive identity (0)
b. Every number has an additive inverse
c. There is a multiplicative identity (1)
d. Every number (except 0) has a multiplicative inverse
e. 0 != 1

c. and b. imply the existence of -1 as a real number.
14. 26 Mar '06 16:541 edit
Originally posted by XanthosNZ
We'll have none of that. We're using the Peano axioms in this thread.

1. 0 is a number.
2. The succesor of any number is a number.
3. If a and b are numbers and they have the same succesor then a equals b.
4. 0 is not the succesor of any number.
5. If [b]S
is a set containing 0, and the succesor of any number n ...[text shortened]... b]S[/b] then S contains all the numbers.

By rule 4 negative numbers are not numbers.[/b]
Peanos axioms is about natural numbers, not only numbers. -1 is not a natural number by these asioms, for that you have to have an extention to the natural numbers - the integers.

But of course -1 is a number. (Of which kind?) An integer. (Not a natural number?) No, there is no negative natural numbers. Not by the Peanos axiom of the natural numbers, anyway. (Why?) Zero is the smallest natural number. (Why?) "0 is not the successor of any natural number."
15. 31 Mar '06 23:34
Originally posted by Ronnie48
THIRTY- SIX MINUS TEN

3+3x3

5x5x0

20-15