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# Math STAAR Voc.

### vocabulary

Term | Definition |
---|---|

polygon | A closed flat figure with straight lines |

quadrilateral | a four-sided polygon |

hexagon | 6 sided polygon |

pentagon | 5 sided polygon |

octagon | 8 sided polygon |

congruent | same size, same shape |

Parallelogram | A quadrilateral with two pairs of parallel sides |

Trapezoid | a quadrilateral with only one pair of parallel sides |

square | 4 equal sides and 4 right angles |

parallel lines | lines that never meet or intersect |

perpendicular lines | Lines that intersect to form right angles, X and Y axis are perpendicular |

right angle | 90 degree angle |

acute angle | less than 90 degrees |

obtuse angle | more than 90 degrees |

isosceles triangle | A triangle that has 2 equal sides. |

scalene triangle | a triangle with no congruent sides |

equilateral triangle | a triangle with 3 congruent sides and acute |

coordinates | Ordered pairs that identify points (x,y) |

origin | (0,0) where x axis and y axis intersect |

order of operations | PEMDAS |

Q P T R R S | quadrilateral, parallelogram, trapezoid, rectangle, rhombus, square |

cube | all sides are equal |

Adding Fractions with Unlike Denominators | Find the LCM |

multiply decimals | 0.289 X 31 |

sum | add |

difference | subtract |

product | multiply |

quotient | divide |

tenths | The first place value after a decimal point. |

hundredths | The second place value after a decimal point. |

thousandths | The third place value after a decimal point. |

estimate | round |

dozen | 12 |

twice | times 2 |

greater than | > |

less than | < |

half | 0.5 |

1/4 | 0.25 |

3/4 | 0.75 |

one whole | 8/8 or 2/2 |

divide fractions | K C F keep change flip |

multiply decimals | Multiply like normal, count the decimal place values and move the decimal in the product |

expanded notation | (7x1) + (3x0.1) + (5x0.01) |

0.001 | one thousandth |

13/2 | improper fraction: Divide |

divide decimals | move the decimal up and divide |

area | Length x Width |

perimeter | add up all sides l+l+w+w |

volume | L x W x H |

PEMDAS | Parentheses, Exponents, Multiply or Divide, Add or Subtract |

rectangle | a quadrilateral with four right angles |

Rhombus | A parallelogram with four equal sides |

income tax | based on the money you earn from a job, personal |

property tax | A tax on the value of a property, land, house |

sales tax | A tax on a sale of merchandise or services, buy goods |

payroll tax | tax an employer withholds from paycheck, Social Security and Medicare |

x axis | horizontal axis, laying down |

y axis | vertical axis, standing up |

additive pattern | the rule is adding + |

multiplicative pattern | the rule is multiplying x |