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Unit 7 vocabulary
Unit 7 Vocabulary
13
Mathematics
5th Grade
04/01/2014

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Term
account balance
Definition
An amount of money that you have or that you owe.
Term
exponential notation
Definition
A way to show repeated multiplication by the same factor.
Term
expression
Definition
A mathematical phrase made up of numbers, variables, operation symbols, and/or grouping symbols. An expression does NOT contain symbols such as =, >, and <.
Term
in the black
Definition
Having a positive balance; having more money than is owed.
Term
in the red
Definition
Having a negative balance; owing more money than is available.
Term
negative number
Definition
A number less than zero.
Term
nested parentheses
Definition
Parentheses within parentheses in an expression. Expressions are evaluated from within the innermost parentheses outward following the order of operations.
Term
number-and-word notation
Definition
A way of writing a large number using a combination of numbers and words.
Term
opposite of a number
Definition
A number that is the same distance from 0 on a number line as a given number but on the opposite side of 0.
Term
order of operations
Definition
Rules that tell the order in which operations in an expression should be carried out. The order of operations is:
1) Do operations inside grouping symbols first.
2) Calculate all the expressions with exponents.
3) Multiply and divide in order from left to right
4) Add and subtract in order form left to right
Term
parentheses
Definition
( ) Grouping symbols used to indicate which operations in an expression should be done first.
Term
scientific notation
Definition
A system for writing numbers in which a number is written as the product of a power of 10 and a number that is at least 1 and less than 10. Scientific notation allows you to write big and small numbers with only a few symbols.
Term
standard notation
Definition
Our most common way of representing whole numbers, integers, and decimals. Standard notation is base-ten, place-value numeration.
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