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# Grade 3/4 PSSA Vocab

### Math PSSA Vocabulary

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

any of the counting numbers 0 through 9 | digit |

the name of a number written in digits | standard form |

a combination of numbers and symbols that show a mathematical relationship. It can contain variables | expression |

a math sentence showing that one expression equals another | equation |

having the same value | equivalent |

any number that is being added (partner) | addend |

a math sentence that shows that the terms on either side are unequal | inequality |

the answer to an addition problem (total) | sum |

a set of related addition and subtraction, or multiplication and division equations using the same numbers | fact family |

the distance around a figure (add all sides) | perimeter |

a polygon with 4 sides | quadrilateral |

a straight path extending in both directions with no endpoints | line |

lines that never intersect or touch and are always the same distance apart | parallel lines |

two lines, line segments, or rays that intersect to form right angles | perpendicular lines |

a part of a line that has one endpoint and continues without end in the other direction | ray |

a quadrilateral whose opposite sides are parallel and congruent | parallelogram |

having the same size and shape | congruent |

a parallelogram with four equal sides | rhombus |

a quadrilateral with exactly one pair of parallel sides | trapezoid |

a line that divides a figure into two halves that are mirror images of each other | line of symmetry |

a polygon with six sides | hexagon |

an angle with a measure less than 90 degrees | acute angle |

an angle that measures exactly 90 degrees | right angle |

an angle with a measure greater than 90 degrees | obtuse angle |

a point where lines, rays, or sides of a polygon meet | vertex |

a triangle with 1 right angle | right triangle |

a situation in which a rule causes each "in value" to have its own "out value" | function |

a table that uses tally marks to record data | tally chart |

a graph that uses pictures to show and compare information | pictograph |

a transformation that makes a mirror image of a shape - also called a flip | reflection |

a movement of a shape that turns the shape around a fixed point - also called a turn | rotation |

a movement of a shape to a new position without turning or flipping it | translation |

the product of a given number and another number | multiple |

a rectangular arrangement of objects in rows and columns | array |

the measure of the inside of a shape in square units | area |

time shown on a clock with an hour and minute hand | analog time |

a plane figure that serves as one side of a solid figure | face |

the line segment where two faces of a solid figure meet | edge |

a rectangular solid having six congruent square faces | cube |

the amount of space a solid figure can hold in cubic units | volume |

a solid figure with two circular bases that are parallel and congruent | cylinder |

a solid figure that has a circular base and one vertex | cone |

a solid figure with a polygon base and triangular sides that meet at a single point | pyramid |

a solid figure in which all six faces are rectangles | rectangular prism |

a solid figure that has all points the same distance from the center | sphere |

a group of items - placing these items in a different order does not create a new combination | combination |

average - the number found by dividing the sum of a set of numbers by the number of addends | mean |

the middle number in an ordered set of numbers or the average of the 2 middle numbers when the set has 2 middle numbers | median |

the number(s) that occur most often in a set of numbers | mode |

a pair of numbers used to locate a point on a coordinate grid. The first number tells how far to move over, and the second tells you how far to move up | ordered pair |

Created by:
wkmurray