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4th grade Math Vocabulary 2

Terms in this set (143)

acute angle
An angle with a measure less than 90°.
add
To combine, put together two or more quantities.
addend
Any number being added.
additive comparison
Problems that ask how much more (or less) one amount is than another.
algorithm
A step-by-step method for computing.
angle
Two rays that share an endpoint.
angle measure
The measure of the size of an angle. It tells how far one side is turned from the other side. A one degree angle turns through 1/360 of a full circle.
arc
Part of a circle between any two of its points.
area
The measure, in square units, of the inside of a plane figure.
area model
A model of multiplication that shows each place value product.
array
An arrangement of objects in equal rows.
Associative Property of Addition
Changing the grouping of three or more addends does not change the sum.
Associative Property of Multiplication
Changing the grouping of three or more factors does not change the product.
attribute
A characteristic of an object, such as color, shape, size, etc.
benchmark fraction
Fractions that are commonly used for estimation.
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