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Gr. 7 Chap. 1
Mrs. Bradfield 7th Grade Math Chapter 1
| Question | Answer |
|---|---|
| base | when a number is raised to a power, the number that is used as a factor |
| exponent | a number that indicates how many times the base is used as a factor. |
| power | a number produced by raising a base to an exponent |
| scientific notation | a method of writing very large or very small numbers using powers of 10 |
| order of operations | a rule for evaluating expressions |
| associative property | for all real numbers, the sum is the same, regardless of their grouping. |
| commutative property | two or more numbers can be added in any order without changing the sum. |
| identity property | the sum of zero and any # is the #: the product of 1 and any number is the #. |
| algebraic expression | an expression that contains at least one variable |
| constant | a value that does not change |
| evaluate | to find the value of a numerical or algebraic expression. |
| variable | a symbol used to represent a quantity that can change |
| coefficient | the number that is multiplied by the variable in an algebraic expression |
| term | the parts of an expression that are added or subtracted. |
| equation | a mathematical sentence stating that two expressions are equivalent. |
| solution | a value or values that make an equation or inequality true |
| inverse operations | operations that undo each other. |
| absolute value | the distance of a number from zero on a number line, shown by | |. |
| integer | the set of whole numbers and their opposites, including zero. |
| opposite | two numbers that are an equal distance from zero on a number line. |
| composite number | a number greater than 1 that has more than two whole-number factors |
| prime factorization | a number written as the product of its prime factors |
| prime number | a whole number greater than 1 that has exactly two factors: itself and 1. |
| GCF | the largest common factor of two or more numbers. |
| LCM | the least number, other than zero, that is a multiple of two or more given numbers. |
| multiple | the product of any number and any nonzero whole number is a multiple of that number |
| equivalent fractions | fractions that name the same amount or part |
| improper fractions | a fraction in which the numerator is greater than or equal to the denominator. |
| mixed number | a number made up of a whole number that is not zero, and a fraction. |
| repeating decimal | a decimal in which one or more digits repeat infinitely. |
Created by:
alissa2222
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