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# Fourth Grade Math

### Test how well you know fourth-grade math vocabulary

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

Having height and width but no depth. | 2 dimensional |

Having height, width and depth. | 3 dimensional |

An angle measuring less than 90 degrees. | acute angle |

A figure formed by two line segments or rays and having a shared endpoint. | angle |

The number of square units needed to cover a surface. | area |

Adding or multiplying numbers in any order will get you the same answer. | associative property |

A graph that uses bars to show data. | bar graph |

The amount a container can hold when filled. | capacity |

A metric unit for measuring length. 100 = 1 meter | centimeter |

A closed 2 dimensional figure made up of points that are the same distance from the center. | circle |

A solid, pointed figure that has a flat, round base. | cone |

A solid figure with six square faces. | cube |

A unit used to measure capacity. 8 ounces = 1 | cup |

A solid figure that is shaped like a can. | cylinder |

A way to express part of a whole, most commonly used with money. | decimal |

The bottom part of a fraction that tells you how many parts make up the entire whole. | denominator |

The number divided in a division problem. | dividend |

The number that does the dividing in a division problem. | divisor |

The line segment where two faces of a 3 dimensional figure meet. | edge |

The point at either end of a line segment. | endpoint |

Having the same value or having the same amount. | equivalent |

Two or more fractions that have the same amount. | equivalent fractions |

To find a number close to an exact amount. | estimation |

A polygon that is a flat surface of a solid figure. | face |

A number that is multiplied by another number to find a product. | factor |

A way to express part of a whole. Has a numerator and denominator. | fraction |

A unit for measuring capacity. 4 quarts = 1 | gallon |

Any shape made up of polygons that has volume. | geometric solid |

A metric unit that measures mass. 1,000 = 1 kilogram | gram |

A polygon with six sides and six angles. | hexagon |

Place value between thousands and tens places. | hundreds |

One of a hundred equal parts making up one whole. | hundreth |

When two lines of line segments cross at one point. | intersect |

The measure of something from beginning to its end. | length |

A straight path extending in both directions without an endpoint. | line |

What a figure has if it can be folded about a line so that its two parts match exactly. | line of symmetry |

A part of a line that ends at two endpoints. | line segment |

A metric unit for measuring capacity. 1,000 mL = 1 | liter |

A metric unit for measuring length. 100 cm = 1 | meter |

A metric unit for measuring length. 10 = 1 cm | millimeter |

A sentence that is made up of numbers and a relation symbol (=, >, <). | number sentence |

The top number of a fraction that tells you how many parts of the whole you have. | numerator |

An angle measuring between 90 and 180 degrees. | obtuse angle |

First place value to the left of the decimal. | ones |

A unit for measuring weight. 1 pound = 16 | ounce |

Lines that are the same distance apart and never meet. | parallel lines |

A quadrilateral whose opposite sides are parallel. | parallelogram |

A five sided polygon. | pentagon |

The distance around a figure. | perimeter |

Lines that intersect to form right angles. | perpendicular lines |

A unit for measuring capacity. 2 cups = 1 | pint |

This determines the value of a digit in a number. | place value |

A 2 dimensional figure that is formed by lines which are curved, straight or both. | plane figure |

An exact location in space. | point |

A closed figure with straight lines. | polygon |

A unit for measuring weight. 16 ounces = 1 | pound |

A 3 dimensional figure with rectangles for sides and bases of the same shape. | prism |

The answer to a multiplication problem. | product |

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

A polygon with four sides. | quadrilateral |

A unit for measuring capacity. 2 pints = 1 | quart |

The answer in a division problem. | quotient |

A part of a line with one endpoint that continues forever in the other direction. | ray |

A quadrilateral with opposite sides that are equal, and four right angles. | rectangle |

The amount left over when a number cannot be divided equally. | remainder |

An angle that measures 90 degrees. | right angle |

Replacing an exact number with another number that tells about how much. | rounding |

A place value that is second from left of the decimal. | tens |

A solid figure that has the shape of a round ball. | sphere |

An angle that measures 180 degrees. | straight angle |

The place value that is between the thousands and hundred thousands. | ten thousands |

One of ten equal parts that make up a whole. | tenths |

A letter that stands for a number. | variable |

The point at which two rays of an angle, or two line segments meet in a polygon, or three or more sides meet in a 3 dimensional shape. | vertex |

Any of the numbers 1, 2, 3, 4 and so on. | whole numbers |