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43 Cards in this Set

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  • Back
Borrow
To regroup a value from a higher place value to a lower place value in order to subtract
Rounding
moving up or back toward the nearest specified value
Regroup
To borrow an amount from a larger place value (when subtracting). To carry an amount to the next larger place value (when adding).
More
greater in number or amount
Multiplication
to combine groups of equal amounts (4 groups of 2 4 x 2)
Greater Than
a (>) symbol that shows one value is larger than another value
Estimating
finding a value that is close to or about the same as the exact answer
Greatest Common Factor (GCF)
largest single factor of 2 or more numbers
Factor
any number that is multiplied to form a product
Inequality
question where two numbers are not equal to each other (4>2)
Fact Family
a group of related facts based on one fact (4+2=6, 2+4=6, 6-4=2, 6-2=4)
Plus
name of the symbol (+) used in an addition problem
Digit
the 10 symbols we use to write numbers 0 - 9
Decimal
a fraction shown in tenths, hundredths, and so on using a decimal point
Ordinal Number
any number used for ranking (first, second, third, ...)
Average
The sum of a group of numbers divided by the amount of numbers. Also known as a mean
Probability
study of likelihood that an event will occur
MIxed Number
a value that combines a whole number and a fractional amount
Sequence
order of things
Ratios
a comparison of two numbers
Minus Sign
a math symbol (-) that means to subtract one amount from another amount
Whole Number
any number that does not contain a fraction or a decimal
Number Line
a line that has numbered, equally spaced marks
Odd Number
a number that cannot be evenly divided by 2
Even Number
any number that can be evenly divided by 2
Multiple
A number that is the product of 2 numbers
Prime Factors
breaking down a composite number until all of the factors are prime
Fewer
less in amount or number
Less Than
a (<) symbol that shows one value is smaller than another value
Sum
an answer that comes from adding numbers
Product
the answer that comes from multiplying numbers
Numeral
a symbol used to represent a number
Addends
a number being added to one or more numbers
Add
to combine amounts or objects
Subtraction
finding the difference between two numbers by "taking away" a number from a whole amount
Difference
the answer that comes from subtracting one number from another
Least Common Multiple (LCM)
smallest multiple that 2 or more numbers have in common
Times
name given to symbol (X) used in multiplication
Addition
2 or more numbers are "put together" to make a number called the sum
Equal Sign
a symbol (=) that shows two amounts have the same value
Fraction
a number that stands for part of a whole or part of a group
Rename
To put in different terms with the same value.
How much more...
How much less...
How many more...
Separate...
When these words are seen in a story problem, they are clues to subtract