Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# 5th grade math

### academic vocab

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

Common Denominator | the same denominator used in two or more fractions |

Denominator | the bottom number in a fraction. Tells the number of pieces making up the whole |

Equivalent | having the same value |

Fraction | part of a whole |

Greatest Common Factor (GCF) | the largest number that divides evenly into two or more numbers |

Least Common Multiple (LCM) | the smallest whole number greater than 0 that is a common multiple of two or more numbers |

Multiple | skip counting |

Numerator | the top number in a fraction |

Simplify | to reduce a fraction to lowest terms |

Whole number | all counting numbers including 0 |

Factor | a number multiplied by another number |

Quotient | the answer to a division problem |

Product | the answer to a multiplication problem |

Difference | answer to a subtraction problem |

Sum | answer to an addition problem |

Compatible Numbers | numbers that are easy to calculate in your head |

Standard Form | the common way to write a number |

Expanded Form | the way to write a number showing the place value of each digit |

Word Form | the written form of a number without using digits |

Estimate | an approximate number; not the exact value |

Dividend | the number to be divided (goes inside) |

Divisor | the number used to divide another number (goes outside) |

Remainder | a number left over after division is complete |

Factor Tree | a diagram that shows the prime factorization of a composite number |

Improper fraction | a fraction whose numerator is greater than the denominator |

Mixed Number | a number that has a whole number part and a fractional part |

Prime Number | a whole number greater than 1 with ONLY two factors, 1 and itself |

Composite Number | a whole number greater than 1 that has more than 2 factors |

Unit fraction | a fraction where the numerator is 1 and the denominator is a positive number |

Convert | to change from one form to another |

Area | the number of square units needed to cover a space; L x W |

Perimeter | the distance around the outside of a figure; add up all the sides |

Base Area | the area of one of the bases of a 3D figure; "B" |

Cubic Unit | a measure of volume. It is equal to the volume of a cube, which is 1 unit tall, 1 unit wide, and 1 unit long |

Height | the distance from top to bottom |

Volume | amount of space an object takes up; L x W x H |

Triangle | a three sided polygon |

Right triangle | a triangle with a right angle |

Isosceles triangle | a triangle with two equal sides |

Scalene triangle | a triangle with no equal sides |

Equilateral triangle | a triangle where all of the sides and angles are the same length |

Quadrilateral | a four sided polygon |

Parallelogram | a quadrilateral with opposite sides parallel |

Rectangle | a quadrilateral with straight sides where all interior angles are right angles |

Square | a quadrilateral, all sides have equal length, and every angle is a right angle |

Rhombus | a quadrilateral, all sides have equal length, opposite sides are parallel, and opposite angles are equal |

Trapezoid | a quadrilateral with at least one pair of parallel sides |

Pentagon | a 5 sided polygon |

Hexagon | a 6 sided polygon |

Heptagon | a 7 sided polygon |

Octagon | an 8 sided polygon |

Nonagon | a 9 sided polygon |

Decagon | a 10 sided polyhon |

Dodecagon | an 12 sided polygon |

Polygon | a closed figure with at least 3 straight sides and angles |

Parallel lines | lines that never get closer together, and never intersect |

Perpendicular lines | lines that intersect at a 90 degree angle |

Created by:
emcmullen