Math Vocab

Front 1

Borrow

Back 1

To regroup a value from a higher place value to a lower place value in order to subtract

Front 2

Rounding

Back 2

moving up or back toward the nearest specified value

Front 3

Regroup

Back 3

To borrow an amount from a larger place value (when subtracting). To carry an amount to the next larger place value (when adding).

Front 4

More

Back 4

greater in number or amount

Front 5

Multiplication

Back 5

to combine groups of equal amounts (4 groups of 2 4 x 2)

Front 6

Greater Than

Back 6

a (>) symbol that shows one value is larger than another value

Front 7

Estimating

Back 7

finding a value that is close to or about the same as the exact answer

Front 8

Greatest Common Factor (GCF)

Back 8

largest single factor of 2 or more numbers

Front 9

Factor

Back 9

any number that is multiplied to form a product

Front 10

Inequality

Back 10

question where two numbers are not equal to each other (4>2)

Front 11

Fact Family

Back 11

a group of related facts based on one fact (4+2=6, 2+4=6, 6-4=2, 6-2=4)

Front 12

Plus

Back 12

name of the symbol (+) used in an addition problem

Front 13

Digit

Back 13

the 10 symbols we use to write numbers 0 - 9

Front 14

Decimal

Back 14

a fraction shown in tenths, hundredths, and so on using a decimal point

Front 15

Ordinal Number

Back 15

any number used for ranking (first, second, third, ...)

Front 16

Average

Back 16

The sum of a group of numbers divided by the amount of numbers. Also known as a mean

Front 17

Probability

Back 17

study of likelihood that an event will occur

Front 18

MIxed Number

Back 18

a value that combines a whole number and a fractional amount

Front 19

Sequence

Back 19

order of things

Front 20

Ratios

Back 20

a comparison of two numbers

Front 21

Minus Sign

Back 21

a math symbol (-) that means to subtract one amount from another amount

Front 22

Whole Number

Back 22

any number that does not contain a fraction or a decimal

Front 23

Number Line

Back 23

a line that has numbered, equally spaced marks

Front 24

Odd Number

Back 24

a number that cannot be evenly divided by 2

Front 25

Even Number

Back 25

any number that can be evenly divided by 2

Front 26

Multiple

Back 26

A number that is the product of 2 numbers

Front 27

Prime Factors

Back 27

breaking down a composite number until all of the factors are prime

Front 28

Fewer

Back 28

less in amount or number

Front 29

Less Than

Back 29

a (<) symbol that shows one value is smaller than another value

Front 30

Sum

Back 30

an answer that comes from adding numbers

Front 31

Product

Back 31

the answer that comes from multiplying numbers

Front 32

Numeral

Back 32

a symbol used to represent a number

Front 33

Addends

Back 33

a number being added to one or more numbers

Front 34

Add

Back 34

to combine amounts or objects

Front 35

Subtraction

Back 35

finding the difference between two numbers by "taking away" a number from a whole amount

Front 36

Difference

Back 36

the answer that comes from subtracting one number from another

Front 37

Least Common Multiple (LCM)

Back 37

smallest multiple that 2 or more numbers have in common

Front 38

Times

Back 38

name given to symbol (X) used in multiplication

Front 39

Addition

Back 39

2 or more numbers are "put together" to make a number called the sum

Front 40

Equal Sign

Back 40

a symbol (=) that shows two amounts have the same value

Front 41

Fraction

Back 41

a number that stands for part of a whole or part of a group

Front 42

Rename

Back 42

To put in different terms with the same value.

Front 43

How much more...
How much less...
How many more...
Separate...

Back 43

When these words are seen in a story problem, they are clues to subtract