Chapter 1-2 Math Definitions

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Author:
mgeniti
ID:
109203
Filename:
Chapter 1-2 Math Definitions
Updated:
2011-10-15 21:37:29
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math
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Description:
Math Definitions for chapter 1 and 2
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  1. Standard Form
    • Number written using digits
    • 5210
  2. Expanded Form
    • A number written in the sum of it's digits
    • 5000+200+20+7=5,227
  3. Word Form
    • A number written in words
    • One Hundred Thirty Five
  4. Product
    The answer in a multiplication problem
  5. Exponent
    • Tells how many times a number is call the base
    • (The power) 103
    • 3 is the exponent and 10 is the base
  6. Base
    • A number raised to a power
    • 103 10 is the base and 3 is the exponent
  7. Term
    Each number in sequence
  8. Sequence
    • An order set of numbers
    • 635635635
  9. Order of Operations
    • A system of performing operations so that every one gets the same answer
    • PEMDAS
  10. PEMDAS
    • Perentheses
    • Exponents
    • Multiplication
    • Division
    • Addition
    • Subtraction
  11. Exponential Form
    • Written with a base and exponent
    • 104
  12. Numerical Expression
    • A mathmatical phrase using operational symbols and numbers
    • 7+8+9=24
  13. Commutative Property
    • Changing the order of the addends or factors does not change the sum or product.
    • 1+7=7+1
    • 8*3=3*8
  14. Associative Property
    • Changing the grouping of numbers does not change a sum or product.
    • (9+3)+7=9+(3+7)
  15. Identity Property of Addition
    • The sum of 0 and any number is a that number. Zero is called the identity for addition.
    • 9+0=9
    • 0+a=a
  16. Identity Property of Multiplication
    • The product of 1 and any number equals that number. One is the identity for multiplication.
    • 3 x 1=3
    • a x 1 = a
  17. Zero Property of multiplication
    • The product of any non zero number and zero equals 0
    • 3 x 0 = 0
    • a x 0 = 0
  18. Distributive Property of multiplication over addition
    • Numbers added within a set of parentheses can be miltiplied by a number outside the parentheses.
    • 7 x (3+4) = (7 x 3) + (7 x 4)
  19. Inverse Property of Addition
    • The sum of a number and its additive inverse, or opposite is 0
    • 2 + (-2) = 0
  20. Inverse Property of Multiplication
    • The product of a nonzero number and its multiplicative inverse or reciprocal is 1
    • 4 x 1/4 = 1
  21. 8 X 1 = 8
    Identity Property
  22. 1/8 X 8 = 1
    Inverse Property of Multiplication
  23. 0 X 4 = 0
    Zero Property of Multiplication
  24. 5 + 6 = 6 + 5
    Commutative Property
  25. 6 X 25 = (6 X 20) + (6 X 5)
    Distributive Property
  26. (15 x m) x 4 = (m x 15) x 4
    Associative Property

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