Question | Answer |
Prime Number | A whole number greater than 1 that has exactly 2 factors, 1 and itself. |
Prime factorization | Any whole number greater than one that has more than 2 factors. |
Exponent | In a power, the number of times the base number is used as a factor. |
Greatest common factor (GCF) | The greatest common factors of two or more numbers. |
Least common factor (LCF) | The least common of the non-zero common multiples of two or more numbers. |
Reciprocal | The multiplicitive inverse of a number |
Term | Variables, 2 or more terms in one expression that are separated by operations signs such as +, -, /, etc. |
x-coordinate | The first number of an ordered pair |
y-coordinate | The second number of an ordered pair. |
y-axis | Vertical number line in a coordinate plane |
x-axis | Horizontal number line in a coordinate plane |
Absolute value | The distance from zero on a number line. |
Additive inverse | The integer and its opposite. The sum of an integer and its oppostive is zero. |
Coefficient | The numerical part of an expression. |
Inequality | A mathematical sentence that contains the symbols < or >. |
Integer | The whole numbes and their opposites. For example... -3, -2, -1, 0, 1, 2, 3... |
Negative integer | Interger less than zero. |
Origin | The intersection of the x- and y-axis in a coordinate system.The zero point on a number line. |
Positive integer | Integer greater than zero |
Quadrant | One of the 4 regions into which the intersecting number lines divide the coordinate system. |
Multiplying integers | The product of two integers with different signs is negative. |
Subtracting integers | To subtract an integer, add its additive inverse. Ex. 6-3=6+(-3) |
Variable Expression | An expression that contains one or more variables. Ex. 6a, a+b, 6a+ab |
Variable | A letter or symbol used to represent one or more numbers. Any letter may be used. |
Evaluate | To evaluate a variable expression you must substitute a given number for the variable. Ex. |
Numerical expression | An expression that may contain one or more of the operations of addition, subtraction, multiplication or division, Ex. 3x5, 6+3, 8-9 |
Algerbraic expression | An expression that contains both numerical and variable expressions |
Real numbers | The set of numbers that contain all positive numbers, all negative numbers and zero. |
Natural numbers | The set of counting numbers, (1, 2,3) |
Whole numbers | (0, 1, 2, 3) |
Rational number | A number that can be written in the form m/n where m and n are integers and cannot equal zero. |
Twice as much as | 2x |
Two less than | x - 2 |
Five more than | x + 5 |
Three more than twice the unknown | 2x + 3 |
A number decreased by 7 | x - 7 |
Ten decreased by the unknown | 10 - x |
Sheri's age (x) 4 years from now | x + 4 |
Dan's age (x) 10 years ago | x - 10 |
Sum of a number and 20 | x + 20 |
Product of a number and 3 | 3x |
Quotient of a number and 8 | x/8 |
Three is four more than a number | 3= x + 4 |
Communative Property | States that two numbers may be added or multiplied in either order. |
Equation | Two or more mathematical expressions separated by equal signs |
Associative property | Allows you to add or multiply with different groupings. The final answer does not change |
Distributive property | The product of a number and sum or difference of numbers. |