| Become a member of Enchanted Learning. Site subscriptions last 12 months. Click here for more information on site membership. As low as $20.00/year (directly by Credit Card) |
||||
| Site members have access to the entire website with print-friendly pages and no ads. | ||||
| +, - | Math Dictionary |
x, ÷ |
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| |
|
Q.E.D. Q.E.D. is an abbreviation of the Latin phrase "quod erat demonstrandum" (meaning "that which was to be demonstrated"). Q.E.D. can be written at the end of a mathematical proof to show that the proof is complete. |
 quadrant A quadrant is a quarter of a plane. The x-axis and y-axis divide the x-y plane into four quadrants. The axes themselves are not part of the quadrants. |
 quadratic equation A quadratic equation is an equation that has a second-degree term and no higher terms. A second-degree term is a variable raised to the second power, like x2, or the product of exactly two variables, like x and y. When you graph a quadratic equation in one variable like ax2 + bx + c, you get a parabola, and the solutions to the quadratic equation represent the points where the parabola crosses the x-axis. |
 quadratic formula The quadratic formula is a formula ax2 + bx + c = 0 that gives you a solution to the quadratic equation. The quadratic formula is obtained by solving the general quadratic equation. |
 quadrilateral A quadrilateral is a four-sided figure. The square, rectangle, rhombus, trapezoid, kite, and parallelogram are quadrilaterals. |
 quart A quart is one-fourth of a gallon. Four quarts make one gallon. |
 quarter A quarter is a coin that is worth 25 cents. Four quarters make one dollar. |
quartile A quartile for a data set is one of three data points that divide the set of data into four parts, each containing a quarter of the data. The first point marks the lower quartile boundary at the 25th percentile. The second marks the middle quartile (or midpoint of the data set), the median or the 50th percentile. The last marks the upper quartile (or 75th percentile) of a frequency distribution. |
 quotient The quotient is the answer in long division. The dividend divided by the divisor is the quotient (plus a remainder). |
| +, - | Math Dictionary |
x, ÷ |
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Counting | Addition | Subtraction | Multiplication | Division |
| Number Line | Fractions | Decimals | Rounding | Graphs |
Click on an underlined word for more information on that subject. If the math term you are looking for is not in the dictionary, please e-mail us.
|
Overview of Site What's New Enchanted Learning Home Monthly Activity Calendar Books to Print Site Index K-3 Crafts K-3 Themes Little Explorers Picture dictionary PreK/K Activities Rebus Rhymes Stories Writing Cloze Activities Essay Topics Newspaper Writing Activities Parts of Speech Fiction The Test of Time |
Biology Animal Printouts Biology Label Printouts Biomes Birds Butterflies Dinosaurs Food Chain Human Anatomy Mammals Plants Rainforests Sharks Whales Physical Sciences Astronomy The Earth Geology Hurricane Landforms Oceans Tsunami Volcano |
Languages Dutch French German Italian Japanese (Romaji) Portuguese Spanish Swedish Geography/History Explorers Flags Geography Inventors US History Other Topics Art and Artists Calendars Crafts Graphic Organizers Label Me! Printouts Math Music |
Click to read our Privacy Policy
|