| A | B |
|---|
| absolute value | The distance from a point on the number line to zero, or the value of any number ignoring its sign (The makes the number positive.). |
| associative property | The property which states that for all real numbers a, b, and c, their sum or product is always the same, regardless of their grouping: (a+b)+c=a+(b+c), (ab)c=a(bc). |
| base | A side of a polygon or a face of a solid figure by which the figure is measured. A height or altitude intersects the base. |
| commutative property | The property which states that two or more addends can be added or that two or more factors can be multiplied in any order without changing the sum or product. |
| difference | The amount by which one value is greater or smaller than another. |
| distributive property | The property which states that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products: a(b+c)=ab+ac. |
| evaluate | Find what a math expression equals, often by substituting a value for a variable: 3x7=21 or 8y=?, y=4, 8x4=32. |
| exponent | The number that indicates how many times the base is used as a factor: 4 X 4 X 4 = 4 cubed, 4 is the base; 3 is the exponent. |
| identity property | The property which states that multiplying a number by 1 does not change the number's value: 6 X 1 = 6, 1 x a = a, 3 x 2/2 = 6/2. |
| increased by | If you increase a value by an amount or number, it becomes bigger by that amount or number. |
| integer | The set of whole numbers and their opposites: 8, -23, 14/2. |
| less than | A number to the left of another number on the number line: 6<8. The symbol is also called less than. |
| more than | A number to the right of another number on the number line. 8>6. The symbol is also called more than. |
| numerical expression | A mathematical phrase that includes only numbers and operation symbols: 60+25, 42÷7+5. |
| order of operations | The order in which the multiplication, division, addition, and subtraction are done within an expression when evaluating it. |
| PEMDAS | In the order of operations, working left to right repeatedly: Parentheses, Exponents; then Multiplication, Division; then Addition, Subtraction. |
| power | The value of a number represented by a base and an exponent or simply the expression formed by a base and exponent. |
| product | The result after numbers and/or variables are multiplied: 7x9=63, 9x7y=63y. |
| quotient | The result after numbers and/or variables are divided: 7÷2=7/2, 8y÷2=4. |
| simplify | The result of either combining like terms in an expression: 4y+3y+2=7y+2 or using the property of a/a=1 to reduce a fraction so that no common factor exists in both the numerator and denominator: 18/21=6/7. |
| sum | The result after numbers and/or variables are added: 13+2=15, 3y+34y=37y. |
| total | Another name for sum. Often used for more than one adden: 8+9+23+17=57. |
| variable expression | An expression that uses one or more letters to represent one or more numbers: 8y, -2yz+3z. |
| whole number | The set of natural numbers and 0, {0, 1, 2, 3, . . .}. |
| zero property | Adding zero to a number does not change the number's value: 0+7=7, 0+11y=11y. |
