RISE Math Vocabulary

Acute Angle : An angle that measuresgreater than 0°and lessthan 90°.

Angle : A figure formed by twoline segments or rays thatshare the same endpoint.

Compare : To describe whethernumbers are less than,greater than, or equal toone another.

Composite Number : A whole number greaterthan 1 that can be dividedby more than two factors.

Endpoint : A point at the end of a rayor line segment.

Equation : A number sentence withan equal sign (it showstwo quantities are equal).Example 9 x a = 36

Fraction : A number that names partof a whole or part of agroup.

Length : The measurement ofdistance between twoendpoints.

Mass : The amount of matter inan object.

Multi-Digit Number : A number greater than 9that has more than 1digit.

Obtuse Angle : An angle that measuresgreater than 90°and lessthan 180°.

Operation : A mathematicalcalculation, the four basicoperations are addition,subtraction,multiplication anddivision.

Point : An exact location.

Prime Number : A number that hasexactly two factors, 1 anditself.

Ray : A line with one endpointthat goes on forever inone direction.

Reasonableness : An answer that makessense based on theproblem that is beingsolved.

Shape Pattern : An ordered set of shapes,the order helps you predictwhat will come next.

Two-Dimensional Figures : A figure with length andwidth; a figure on a planeor flat surface.