Basic Identities Algebra

[Raven]

Closure Property of Addition Sum (or difference) of 2 real numbers equals a real number
Additive Identity a + 0 = a
Additive Inverse a + (-a) = 0
Associative of Addition (a + b) + c = a + (b + c)
Commutative of Addition a + b = b + a
Definition of Subtraction a - b = a + (-b)
http://www.math.com/tables/barspec.gif
Closure Property of Multiplication Product (or quotient if denominator http://www.math.com/tables/not-equ.gif0) of 2 reals equals a real number
Multiplicative Identity a * 1 = a
Multiplicative Inverse a * (1/a) = 1 (a http://www.math.com/tables/not-equ.gif 0)
(Multiplication times 0) a * 0 = 0
Associative of Multiplication (a * b) * c = a * (b * c)
Commutative of Multiplication a * b = b * a
Distributive Law a(b + c) = ab + ac
Definition of Division a / b = a(1/b)

Source (http://www.math.com/tables/algebra/basicidens.htm)

[Kaos]

Hey this will come in useful! My daughter just came home with a letter from school telling me they are starting algebra... in 2nd grade! She's in honors program but still, I think I learned it in 9th grade. Is it just me or doesn't that seem way early? Now I have to brush up on it.

[Raven]

I put that there cause Jazzie had a test coming up, glad someone else can use it also. Heres some info that might come in handy for parents.

http://www.discussny.com/showthread.php?p=8128#post8128

Hey this will come in useful! My daughter just came home with a letter from school telling me they are starting algebra... in 2nd grade! She's in honors program but still, I think I learned it in 9th grade. Is it just me or doesn't that seem way early? Now I have to brush up on it.

[Kaos]

What grade is yours in doing algebra Raven?

[popowich]

Second grade algebra? Holy smokes!

-Raymond

[Raven]

This was for THERESAS daughter she was telling me she had a test algebra in flashchat over the weekend. I can't remember what grade my kids were doing algebra. My daughter is 27 and my son is 24.

What grade is yours in doing algebra Raven?

[Panama Girl]

*RUNZ away crying*

[THERESA]

*RUNZ away crying*

I'm running away crying with Panama girl. :crybaby2:

[Kaos]

Oh, my mistake sorry Raven. I'm just freaking over my daughters school. No wonder kids get stressed out when they push them this hard!

[Raven]

And parents go WHAT, and run for google. :headbang: At least I would now adays.

Oh, my mistake sorry Raven. I'm just freaking over my daughters school. No wonder kids get stressed out when they push them this hard!

[Cittykat07]

Hey this will come in useful! My daughter just came home with a letter from school telling me they are starting algebra... in 2nd grade! She's in honors program but still, I think I learned it in 9th grade. Is it just me or doesn't that seem way early? Now I have to brush up on it.


omg im in 5th grade and we just started.................doing simple algebra! weird. :eek2::eek2::eek2::eek2:

[Raven]

Back in the old days when dinosaurs were still around and I was in school we didn't have to have anything but basic math. I had to learn algebra when my kids were learning. :hide:

omg im in 5th grade and we just started.................doing simple algebra! weird. :eek2::eek2::eek2::eek2: