INTEGER OPERATION

integer: is a whole number, whole negative number, and zero.

adding

step 1 :write the problem down. -1+-9=

step 2:add the number together and put a mines sign in the for. -1+-9=-10

opposites

step 1: write the problem -2+5=

step 2: it is just put the bigger number first the subtract. 5--2=3

subtracting

step 1 : change the subtracting sign and change the second numbers. 8-6= 8+-6

step 2: do the math. 8+-6=2

opposites

step 1: do the same step as you did in step 1. 9--4= 9++4=

step 2 : do the problem. 9+4=13

multiplying

step 1: look at the problem and see if they are both positive or both negative. -8*-5 or 8*2

step 2 : if they are both negative the answer must be negative then answer the problem.

-8*-5=-40

opposite

step 1: the problem has 2 diff. signs the answer is negative. -9*6=

step 2: answer the problem and add a negative sign in front. -9*6=-54

dividing

step 1: look if the problem has a negative or a positive sign. -6/-2=

step 2: answer the problem like you did for multiplying -6/-2=-3

opposite

step 1: the answer will have a negative sign. -9/3=

step 2: do the problem like you did for the others. -9/3=-3http://www.dositey.com/addsub/Mystery11.htm#s

STEPS ON HOW TO DO ALGEBRA

In these steps I will be explaining how to do algebra. Algebra is two or more variables. Here are steps on how to solve one.

STEP 1: you write the problems out. x-5=9

STEP 2: then ask yourself what is being done to x-5=9
my variables and do the opposite of it.

STEP 3: so we do the opposite of subtraction witch 5+5=0
is addishtion. but both sides have to be egual 9+5=14
so it just adds up to 0 so X is left. do it to the
other side too.

STEP 5: so then x equals 14. x=14

TO CHECK YOUR ANSWER

STEP 1: you rewite your problem. x-5=9

STEP 2: you write the answer that you got up at the top 14-5=9
and then you do what the problems tells you to do. 9=9

STEP 3: if the answer equals the answer on the problem you x=14
got it right.
http://www.brentwood.k12.ca.us/pioneer/StudentPortal/games/algebra.html

Factors and greatest common factors

First I'm going to tell you what factors are and how to find the greatest common factors. Factors are numbers that you multiply to get the number and it can also be the number then sequenced to find the less common multiply, but we are only going to by looking at the greatest common factors.

example: say you have the numbers 12 and 10 and you need to find out the greatest common factors here is what you do.......

1. you list some of the factors of 12 witch are 1,2,3,4,6,12.



2. then you list the factors of 10 witch are 1,2,5,10.



3. but wait I have 1 in both sets but the 2 is greater then that.



4. so now we have our greatest common factor witch is 2.

• but that is the long way so if you want to now a faster way to do this follow these advise..

1. you just list just the factors of the lowest number witch is 10



2. then find what number goes into 12 from those factors but you don't have to write it down.

http://illuminations.nctm.org/tools/factor/index.html

Exponents and Scientific Notation

I am going to teach you how to do exponents. In my example I will teach you how to do 6 to the 3rd power. Normally the exponent would be a small number in the top right hand corner of the base number, but with the computer we can't do that. The six is the base number and the three is the exponent. The exponent tells you how many times to multiply the base number by itself. To solve 6 to the 3rd power I would set it up like 6*6*6 which equals 216.

An example of scientific notation is the population of the US in July 2007 is about 301,000,000. In scientific notation it would be written like 3.01*10 to the 8th power. I wrote it like that because I do not want to waste time and space writing the whole number out. The way you can figure out if I'm right is move the decimal to the right as many times as the exponent number said. So 3.01*10 to the 8th power is the same as 301,000,000.

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hey this is julie.