Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

in reality, all of this has been a total load of old bollocks
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C
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Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 17 Jun 2018, 14:38

The difference between 7 and 2 is 5

Your turn




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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Positive Passion » 17 Jun 2018, 15:19

7 x 2 =14
7 + 2 = 9
7 ÷ 2 = 3.5
7 to the power of 2 = 49

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Butch Manly » 17 Jun 2018, 16:46

7 and 2 are both prime numbers.
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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 17 Jun 2018, 17:42

When writing the digits conventionally, both 2 and 7 can be written with one pencil stroke without taking the implement from the paper





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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby NMB » 17 Jun 2018, 18:36

Seven is an anagram of evens, which is the set of numbers divisible by two.
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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 17 Jun 2018, 20:07

2 and 7 are factors of 28

14 is a multiple of both 2 and 7







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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby John aka Josh » 17 Jun 2018, 20:27

2 is a homophone while seven isn't.


Two is respectable whereas 7 is scary, given to cannibalistic tendencies with a preference for three squared meals daily.
Image

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Positive Passion » 17 Jun 2018, 20:55

If you turn a 2 the other way up and straighten the curved bit, you get a 7.

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 17 Jun 2018, 22:15

the sum of 72 and 27 is 99 which is a multiple of 11.

Let's try that with another couple of digits - say 4 and 1.

41 add 14 is 55 which is also a multiple of 11

Let's look at more examples

84+48 = 132 which is a multiple of 11

22 + 22 = 44 yes!

37 + 73 = 110 yes!

Why will this always be true...?







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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby The Red Nosed Heifer » 18 Jun 2018, 00:43

7 2 is a shit hand to be dealt in TEXAS HOLD THEM P WORD GAME
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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Snarfyguy » 18 Jun 2018, 04:16

Image

What the FUCK are you talking about?
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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Positive Passion » 18 Jun 2018, 06:21

Pansy Puff wrote:Hey, you know what's weird. The difference between those pairs of numbers you've generated is always a multiple of 9!

eg 41 - 14 = 27


22 and 22?

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Positive Passion » 18 Jun 2018, 06:27

C wrote:the sum of 72 and 27 is 99 which is a multiple of 11.

Let's try that with another couple of digits - say 4 and 1.

41 add 14 is 55 which is also a multiple of 11

Let's look at more examples

84+48 = 132 which is a multiple of 11

22 + 22 = 44 yes!

37 + 73 = 110 yes!

Why will this always be true...?

.

Because you will always have equal numbers of tens and units.

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 18 Jun 2018, 08:59

Positive Passion wrote:
C wrote:the sum of 72 and 27 is 99 which is a multiple of 11.

Let's try that with another couple of digits - say 4 and 1.

41 add 14 is 55 which is also a multiple of 11

Let's look at more examples

84+48 = 132 which is a multiple of 11

22 + 22 = 44 yes!

37 + 73 = 110 yes!

Why will this always be true...?

.

Because you will always have equal numbers of tens and units.


Yes, good lad - keep going....




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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 18 Jun 2018, 09:00

Pansy Puff wrote:
Positive Passion wrote:
Pansy Puff wrote:Hey, you know what's weird. The difference between those pairs of numbers you've generated is always a multiple of 9!

eg 41 - 14 = 27


22 and 22?

=0 which is 0×9


Absolutely


All this nonsnese about zero not being a number.....!




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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby The Red Nosed Heifer » 18 Jun 2018, 11:31

Snarfyguy wrote:Image

What the FUCK are you talking about?


I really in hindsight should have just said POKE HER and got on with it.
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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby C » 18 Jun 2018, 16:44

63+36

= (60+3)+(30+6)

= 66 +33

= 11(6+3)

So the general case:

ab + ba (where a and b are integer digits)

= (10a +b) + (10b + a)

= 11a + 11b

= 11(a+b)

which will always be a multiple of 11 irrespective of digit values




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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby bobzilla77 » 18 Jun 2018, 22:30

2 and 2 is 4.

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby Positive Passion » 18 Jun 2018, 23:10

C wrote:63+36

= (60+3)+(30+6)

= 66 +33

= 11(6+3)

So the general case:

ab + ba (where a and b are integer digits)

= (10a +b) + (10b + a)

= 11a + 11b

= 11(a+b)

which will always be a multiple of 11 irrespective of digit values




.


But that is just what I said!

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Re: Maths is not elitist or difficult - HAVE A GO!! Say something about 7 and 2

Postby clive gash » 18 Jun 2018, 23:24

Worst Crimson improv ever.
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