Holt Middle School Math Course 2 2004 - Chapter 2
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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| power | repeated multiplication of a number(factor) by itself, such as 2x2x2x2
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| exponent | in a power, it is the number which represents how many times to use the base as a factor
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| base | in a power, it is the number that gets multiplied by itself
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| standard form | the way most numbers are written
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| scientific notation | a shorthand way to write very large numbers
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| numerical expression | an expression made up of numbers and operations
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| order of operations | rules to be followed when simplifying a numerical expression
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| prime number | a whole number greater than one that has exactly 2 factors, 1 and itself (example: 17)
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| composite number | a whole number that has more than 2 factors (example: 6 has factors of 1, 2, 3, and 6)
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| prime factorization | a composite number written as the product of its prime factors (example: 20 = 2 x 2 x 5)
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| greatest common factor (GCF) | the greatest whole number that divides evenly into 2 or more whole numbers
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| multiple | the product of a number and any whole number
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| least common multiple | the least of the common multiples of two or more numbers
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| variable | a letter that represents a number that can vary
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| constant | a number that cannot change (example: 456)
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| algebraic expression | an expression that contains one or more variables and often constants and operations
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| evaluate an algebraic expression | substitute a number for the variable and simplify
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| verbal expressions | words that can be translated into algebraic expressions
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| term | a number, variable, or a product of numbers and variables (examples: 7 z 8y 12xy )
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| coefficient | a number that is multiplied by a variable in an algebraic expression (example: 8 in 8x)
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| like terms | terms with the same variable raised to the same power (example: 7x and 10x )
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| equation | a mathematical statement that 2 expressions are equal in value (example: 7x+10=24)
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| solution | the value of the variable that makes a statement(equation)true
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| solve | to find the SOLUTION to an equation
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| isolate the variable | get the variable ALONE on one side of the equation
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| Addition Property of Equality | You can ADD the same amount to both sides of an equation and the statement will still be true
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| inverse operations | operations which "undo" each other (example: addition and subtraction)
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| Subtraction Property of Equality | You can SUBTRACT the same amount to both sides of an equation and the statement will still be true
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| Multiplication Property of Equality | You can MULTIPLY both sides of an equation by the same amount and the statement will still be true
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| Division Property of Equality | You can DIVIDE both sides of an equation by the same amount and the statement will still be true
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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.
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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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