Does -3 x -2 = -5 ?

[Thora]

If she has any older children surely she would know they give homework to junior school children?? ( 7-8 up?) no??

I don't know!!!??? But whatever the answer, I'm outraged!!??!!

 

[Deareg]

grand daughters homework

sorry to hijack this thread but does any one understand this question?

1, 4, -, 16, -, -, 49, -, -, 100, -, -,

it is her homework but doesn't understand it

 

[Epico]

Each number in the sequence is a square root.

1 squared - 1
2 squared - 4
next would be 3 squared - 9
and so on.

 

[Deareg]

Each number in the sequence is a square root.

1 squared - 1
2 squared - 4
next would be 3 squared - 9
and so on.

thanks, your a star

 

[subversplat]

Multiplication with negative numbers also requires a little thought. First consider negative one (−1). For any positive integer m:
(−1)m = (−1) + (−1) +...+ (−1) = −m
This is an interesting fact that shows that any negative number is just negative one multiplied by a positive number. So multiplication with any integers can be represented by multiplication of whole numbers and (−1)'s.
All that remains is to explicitly define (−1)·(−1):
(−1)·(−1) = −(−1) = 1
However, from a formal viewpoint, multiplication between two negative numbers is (again) directly received by means of the distributive property, e.g: (−1)·(−1)
= (−1)·(−1) + (−2) + 2
= (−1)·(−1) + (−1)·2 + 2
= (−1)·(−1 + 2) + 2
= (−1)·1 + 2
= (−1) + 2
= 1

See, it's easy when explained in simple terms.

 

[Deareg]

See, it's easy when explained in simple terms.

i didn't know you could speak chinese

 

[_angel_]

If she has any older children surely she would know they give homework to junior school children?? ( 7-8 up?) no??

My children are autistic, misshissyfit, you know that. Their schools are completely different.

My old high school had no uniform, as I posted, I don't recall bullying being a problem because of it.. and we had a wide social and racial mix at that school.