Mrs. Bradfield 7th Grade Math Chapter 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| base | when a number is raised to a power, the number that is used as a factor
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| exponent | a number that indicates how many times the base is used as a factor.
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| power | a number produced by raising a base to an exponent
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| scientific notation | a method of writing very large or very small numbers using powers of 10
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| order of operations | a rule for evaluating expressions
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| associative property | for all real numbers, the sum is the same, regardless of their grouping.
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| commutative property | two or more numbers can be added in any order without changing the sum.
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| identity property | the sum of zero and any # is the #: the product of 1 and any number is the #.
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| algebraic expression | an expression that contains at least one variable
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| constant | a value that does not change
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| evaluate | to find the value of a numerical or algebraic expression.
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| variable | a symbol used to represent a quantity that can change
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| coefficient | the number that is multiplied by the variable in an algebraic expression
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| term | the parts of an expression that are added or subtracted.
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| equation | a mathematical sentence stating that two expressions are equivalent.
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| solution | a value or values that make an equation or inequality true
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| inverse operations | operations that undo each other.
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| absolute value | the distance of a number from zero on a number line, shown by | |.
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| integer | the set of whole numbers and their opposites, including zero.
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| opposite | two numbers that are an equal distance from zero on a number line.
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| composite number | a number greater than 1 that has more than two whole-number factors
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| prime factorization | a number written as the product of its prime factors
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| prime number | a whole number greater than 1 that has exactly two factors: itself and 1.
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| GCF | the largest common factor of two or more numbers.
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| LCM | the least number, other than zero, that is a multiple of two or more given numbers.
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| multiple | the product of any number and any nonzero whole number is a multiple of that number
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| equivalent fractions | fractions that name the same amount or part
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| improper fractions | a fraction in which the numerator is greater than or equal to the denominator.
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| mixed number | a number made up of a whole number that is not zero, and a fraction.
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| repeating decimal | a decimal in which one or more digits repeat infinitely.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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