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Number sense Ch 1-3
vocabulary
| Term | Definition |
|---|---|
| common factor | A number that is a factor of two or more numbers |
| dividend | The number that is to be divided in a division problem |
| divisor | The number that divides the dividend |
| factor | A number multiplied by another number to find a product |
| greatest common factor (GCF) | The greatest factor that two or more numbers have in common |
| least common multiple (LCM) | The least number that is a common multiple of two or more numbers |
| prime factorization | A number written as the product of all its prime factors |
| prime number | A number that has exactly two factors: 1 and itself |
| common denominator | A common multiple of two or more denominator |
| compatible numbers | Numbers that are easy to compute with mentally |
| equivalent fractions | Fractions that name the same amount or part |
| fraction | a number that names a part of a whole or a part of a group |
| mixed number | A number that is made up of a whole number and a fraction |
| multiplicative inverse | A reciprocal of a number that is multiplied by that number in a product of 1 |
| reciprocal | Two numbers are reciprocal of each other of their product equals 1 |
| simplest form | A fraction is in simplest form when the numerator and denominator have only 1 as a common factor |
| absolute value | The distance o an integer from zero on the number line |
| coordinate plane | A plane formed by a horizontal line called the x-axis and a vertical line called the y-axis |
| integers | The set of whole numbers and their opposites |
| line of symmetry | A line that divides a figure onto two halves that are reflections of each other |
| line symmetry | A figure has line symmetry if it can be folded about a line so that its two parts match exactly |
| ordered pair | A pair of numbers used to locate a point on a grid |
| negative integer | Any integer less than zero |
| opposites | Two numbers that are the same distance, but in opposite directions, from zero on a number line |
| origin | The point where the two axes of a coordinate plane intersect; (0,0) |
| positive integer | Any integer greater than zero |
| quadrants | The four regions of the coordinate plane separated by the x- and y- axes |
| rational number | Any number that can be written as a ratio a/b where a an b are integers and b=/ 0 |
| x- axis | The horizontal number line on a coordinate plane |
| x- coordinate | The first number in an ordered pair; tells the distance t move right or left from (0,0) |
| y-axis | The vertical number line on a coordinate plane |
| y- coordinate | The second number in an ordered pair; tells the distance to move up or down from (0,0) |
Created by:
dr027569
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