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# PRAXIS Math

### PRAXIS II

Question | Answer |
---|---|

Scientific notation | Writing or displaying numbers in decimal numbers btwn 1 & 10 mult. by a power of 10 IE 10492 is 1.0492 x 10 to the 4th |

Cardinal number | used in counting to indicate quantity but not order ie: 3, 11, 412 |

Ordinal number | A number indicating position in a series or order. IE: 1st, 2nd, 3rd. |

Prime number | A positive interger not divisible without a remainder by any positive interger other than itself and one |

Composite number | An interger exactly divisible by at least one positive integer other than itself or one |

Least Common Factor | The least whole number which can be divided exactly by each of two or more given whole numbers |

Greastest Common Factor | The greatest whole number which will divided exactly into each of two or more given whole numbers |

Factor Tree | A diagram showing all stages of breaking down a number by division into its prime factors. |

Commutative | Two values in an addition can be exchanged with each other without changing the result of the calculation |

Associative | More than two successive additons can be done in any order without changing the result of the caluculatin |

Distributive property | In order to multipy two expressions, each term of one expression must be multiplied by each term of the other expression |

Order of Operations | Please Excuse My Dear Aunt Sally |

A negative multiplied or divided by a negative equals?? | A positive nubmer |

A negative multiplied by a positive equals?? | A negative number |

Treat a negative sign just like | a subtraction sign 3+-2=3-2 or 1 |

Remember you can reverse numbers while... | adding or subtracting -4+2=2+-4+2 -4 =-2 |

A negative number subtracted from another number is the same as adding a ... | positive number 2--=2+1=3 |

The product of any number and Zero is... | zero |

Zero divided by any number is... | zero |

Any number divided by zero is... | zero |

The Area of a triangle | 1/2 the base x height |

Area of a circle is | pi and the radius squared |

circumference of a circle is... | pi and the diameter |

Volume equals | base x height |

perimeter | sum of the lengths forming the sides of a polygon |

Parallel | Everything is equal distance |

Perpendicular | Forming of a right angle |

Angle | The union of two rays with a common endpoint |

The common endpoint of two rays | Vertex |

Angle measure | The amount of rotation of a ray around its endpoint |

Right angle | 90 degree angle |

Right triangle | A triangle with one right angle |

Isosceles triangle | A triangle with at least two congruent sides and two congruent angles |

Hypotenuse | The longest side of a right triangle |

Pytahagorean Theorem | the sum of the squares of the lenths of the sides of a right triangle is equal to the square of the lenglth of the hypotenuse |

Mode | The value or item occurring most frequently in a series of observations or statistical data |

Created by:
monica_b