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4th Grade Math operation Vocabulary
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Terms in this set (63)
add
To combine, put together two or more quantities
addend
Any number being added
associative property of multiplication
The product stays the same when the grouping of addends is changed. (a x b) x c = a x (b x c), where a, b, and c stand for any real numbers.
algorithm
A step by step method of computing
associative property of addition
The sum stays the same when the grouping of addends is changed. (a + b) + c = a + (b + c), where a, b, and c stand for any real numbers.
common multiple
Any common multiple of two or more numbers
commutative property of multiplication
The product stays the same when the order of the factors is changed. a x b = b x a, where a and b are real numbers.
compare
To decide if one number is greater than, less than or equal to another number.
commutative property of addition
The sum stays the same when the order of the addends is changed. a + b = b + a, where a and b are any real numbers.
compose
To put together components or basic elements.
difference
The amount that remains after one quantity is subtracted from another.
dividend
A quantity to be divided.
digit
Any of the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9.
decompose
To separate into components or basic elements.
divide
To separate into equal groups and find the number in each group or the number of groups.
distributive property
When one of the factors of a product is a sum, multiplying each addend before adding does not change the product.
divisor
The quantity by which another quantity is to be divided.
equal
Having the same value.
equal groups
Groups that contain the same number of objects. Whenever you divide, you separate items into these.
estimate
To find a number close to an exact amount, this tells about how much or about how many.
factor
An integer that divides evenly into another.
fact family
A group of related facts that use the same numbers. Also called related facts.
equation
A mathematical sentence with an equals sign. The amount on one side of the equals sign has the same value as the amount of the other side.
expression
A mathematical phrase without an equal sign.
evaluate
To find the value of a mathematical expression.
expanded form
A way to write numbers that shows the place value of each digit.
composite number
A number greater than 0 that has more than two different factors.
factor pairs
A set of two whole numbers when multiplied, will result in a given product.
formula
A rule that is written as an equation
greater than
Greater than is used to compare two numbers when the first number is larger than the second number.
least common multiple
LCM. The smallest common multiple of a set of two or more numbers.
less than
Less than is used to compare two numbers when the first number is smaller than the second number.
identity property of multiplication
If you multiply a number by one, the product is the same as that number.
is not equal to
is not that same as.
multiple
The product of a whole number and any other whole number.
identity property of addition
If you add zero to a number, the sum is the same as that number.
inverse operations
Operations that undo each other.
length
How long something is. The distance from one point to another.
Length is measured in units such as inches, feet, centimeters, etc.
order of operations
A set of rules that tells the order in which to compute.
parentheses ( )
Used in mathematics as grouping symbols. When simplifying an expression, the operations within the parentheses are preformed first.
pattern
A repeating or growing sequence or design. An ordered set of numbers or shapes arranged according to a rule.
place value
The value of the plane of a digit in a number.
product
The answer to a multiplication problem.
quotient
The answer to a division problem.
related facts
Related addition and subtraction facts or related multiplication and division facts. Also called fact family.
remainder
The amount left over when one number is divided by another.
sequence
A set of numbers arranged in a special order or pattern
reasonableness
An answer that is based on good number sense.
round a whole number
To find the nearest ten, hundred, thousand, and so on.
rule
A standard method or procedure for solving a class of problems
standard form
The common or usual way of writing a number using digits. Also called base- ten numeral form.
subtract
An operation that gives the differences between two numbers. Subtraction can be used to compare two numbers, or to find out how much is left after some is taken away.
sum
The result of addition.
prime number
A whole number greater than 0 that has exactly two different factors, 1 and itself.
simplify
To express a fraction in simplest form.
variable
A letter or symbol that represents a number.
whole numbers
Whole numbers are zero and the counting numbers 1, 2, 3, 4, 5, 6, and so on. If a number has a negative sign, a decimal point or a part that's a fraction, it is not a whole number.
inequality
A mathematical sentence that compares two unequal expressions using <, >, ≤,≥, or ≠
prediction
To state in advance on the basis of observation, experience, or scientific reason.
word form
A way of using words to write a number. Also called number names.
zero property of multiplication
The product of any number and zero is zero
multiply
The operation of repeated addition of the same number.
computation
The procedure of calculating or problem solving that involves numbers
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