math code
Arithmetic Sequences Brett
Associative Property
for Addition- Camille Mo.
Associative Property in addition is when the factors does not charge the outcome when adding in a different order example:
(a + b) + c = a + (b + c)
for Multiplication- Alex M.
Combining like terms Roberto
Commutative Property
for Addition- Ryan
Ryan Boyer
12/17/07
Information:
Commutative Property- The Commutative property tells you that the result of operating on two numbers is independent of their order.
-In simpler terms the " Commutative Property of addition" basically means you can switch the numbers around when adding and still get the same sum.
Examples:
1. (a+b)5= 5(a+b)
2. n+2= 2+n
3. (a+b)(c+d)= (c+d)(a+b)
for Multiplication- Camille Ma.
Info: The Commutative property for multiplication is a lot like addition; The order we multiply numbers doesn't matter because the answer will be the same.For multiplication, the rule is "ab=ba" or in numbers, 3•2=2•3.
Example: (Remember a•b=b•a)
1. 2•(3)=3•(2)
2. 5•(3)=3•(5)
Decimals
Changing decimals to fractions -Morgan
Different Sequences
-Fibonacci Sequence: see wikispace
-Pascal's Triangle: see wikispace
-Power Sequence: see wikispace
-Sierpinski Triangle: see wikispace
-Triangular Numbers: see wikispace
-Rectangular Numbers: see wikispace
Distributive Property -Melissa
Equivalent Expressions James
-How do we know expressions are equivalent?
Factoring
-Undoing the Distributive property Anthony
Fractions
-Multiplying Fractions Megan
-Equivalent Fractions Talib
-Adding Fractions Alexis
-Changing fractions to decimals Justin
Geometric Sequences Robert
Graphing Sequences -Bria
Identity Property
for Addition- Shanice
for Multiplication- Katherine
Inverse Property
for Multiplication- Andre
-Inverse Property of Multiplication: a (1/a) = 1 as long as a is not equal to zero
-Its basically just a way to multiply a fraction instead of diving a whole number once you get down to the last step.
-It may be easier to use the normal way (which is to divide). Especially if not good with fractions.
Examples:
for Addition- Kim
The formula for this is a + (-a) = 0
example:
4 - 3 = 1
to change that into a addition problem you would have to change the subtraction sign into a addition sign
4 + 3
That isn't it. After you put in the addition sign, you have to turn the 3 into a negative.
The problem would now be
4 + (-3) = 1
I did problem #1 from section 1 on the take home test.
Tuesday, December 18, 2007
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