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43 Cards in this Set
 Front
 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, 64=2, 62=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
