Math Vocabulary Grades K 12

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1 I < > a. m. Above Abscissa Absolute value Acute angle Acute angle Acute triangle Acute triangle Add Addends Addition Addition sentence Adjacent angles After Altitude Analog clock Angle Angle Apothem Arc Area Area Arithmetic sequence Array Associative property of multiplication Asymptote Average Axis Balance Bar graph Base Before Below Between Binomial Bisect Box and whiskers plot indicates grade level/levels that use the vocabulary word 1

2 I Calendar Capacity Cardinal number Centimeter Central angle Certainty Chord Chord Circle Circle Circle graph Circumcenter Circumference Circumference Circumscribed circle Classify Closed figure Coefficient Colder Collinear Combination Common factor Common factor Common multiple Common multiple Commutative property of multiplication Compass Compass Compatible numbers Complementary angles Complex number Composite number Concentric circles Conditional statement Cone Cone Congruent Congruent Congruent figures indicates grade level/levels that use the vocabulary word 2

3 I Conic section Conjecture Constant Construction Converse Convex polygon Coordinate plane Corner Corollary Cosine Count back Count on Cube Cube Cubic unit Customary Cylinder Cylinder Data Data Day Decagon Decimal Decimal point Deductive reasoning Degree Degree Degree Celsius Degree Fahrenheit Denominator Dependent events Dependent quantity Determinant Diagonal Diameter Diameter Difference Digit Digital clock Dilation indicates grade level/levels that use the vocabulary word 3

4 I Dime Direct variation Discriminant Distance Distributive property Distributive property of multiplication Dividend Divisible Division Divisor Dodecahedron Domain Doubles Duration Early Edge Elapsed time Ellipse Equal parts Equally likely Equals Equation Equation Equiangular triangle Equilateral triangle Equivalent decimals Equivalent fractions Estimate Evaluate Even Even function Event Event Expanded form Exponent Exponent Exponents Expression Extend F(x) indicates grade level/levels that use the vocabulary word 4

5 I Face Face Fact family Factor Factor Factorial Fairness Favorable outcome Figure Formula Fractal Fraction Frequency Function Function etric series etry Graph Graphs Greatest Greatest common factor Greatest common factor Grid Half-dollar Half-hour Heavier Heptagon Hexagon Hexagon Histogram Horizontal Hotter Hour Hour hand Hypotenuse Icosahedron Imaginary unit Impossible Inch Independent events indicates grade level/levels that use the vocabulary word 5

6 I Inductive reasoning Inequality Inscribed angle Inscribed polygon Integer Intercept Intercepted arc Intersecting lines Intersecting lines Interval Inverse function Inverse operations Inverse variation Irrational number Isosceles triangle Isosceles triangle y Late Latus rectum Least common denominator Least common multiple Least common multiple Length Less Lighter Like fractions Line Line Line graph Line of symmetry Line of symmetry Line plot Line segment Line segment Linear function Linear function Linear pair of angles Locus Mass Matrix Mean indicates grade level/levels that use the vocabulary word 6

7 I Measurement Median Median Metric Midpoint Minute hand Mixed decimal Mixed number Mode Mode Monomial Month More Multiple Multiple Multiplication Negative numbers Net Net Nickel Non-standard measurement Number line Number line Number sentence Numeral Numerator Obtuse angle Obtuse angle Obtuse triangle Obtuse triangle y Octagon Octagon Octagon Odd Odd function Open figure Operation Opposites Order of operations Ordered pair indicates grade level/levels that use the vocabulary word 7

8 I Ordered pair Ordinal number Ordinate Origin Outcome Outcomes Oval Over p.m. Paired numbers Parabola Parallel Parallel lines Parallelogram Parallelogram Pattern Penny Pentagon Pentagon Per Percent Perimeter Perimeter Period Permutation Perpendicular bisector Perpendicular lines Perpendicular lines Pi Pictograph Pie graph Place value Place value chart Plane Plane Plane figure Point Point Polygon Polygon indicates grade level/levels that use the vocabulary word 8

9 I Polyhedron Polynomial Positive number Possible Postulate Predict Price Prime number Prime number Prism Prism Probability Probability Problem solving Product Proportion Protractor Pyramid Pyramid Pythagorean Theorem Pythagorean triple Quadrant Quadrilateral Quadrilateral Quantity Quarter Quotient Radian Radius Radius Range Range Range Rate Ratio Rational number Ray Ray Reasonableness Reasoning indicates grade level/levels that use the vocabulary word 9

10 I Rectangle Rectangular prism Reflection Reflection Regroup Regular polygon Remainder Resultant Rhombus Rhombus Right angle Right angle Right triangle Right triangle Root Rotation Rotation Round Sample space Scalar Scale Scale drawing Scale factor Scalene triangle Scalene triangle Scatterplot Schedule Scientific notation Secant Sector of a circle Segment Segment of a circle Semicircle Sequence Sequence Set Shape Side Similar figures Similar figures indicates grade level/levels that use the vocabulary word 10

11 I Simplest form Simplifying Sine Skew lines Skip count Slope Solid figure Solution Sphere Sphere Square Square Square root Square unit Standard form Statistics Stem and leaf plot Straight angle Strategy Subtract Subtraction Subtraction sentence Sum Supplementary angles Surface area Survey Symbol Symmetry Symmetry Tangent Tangent Temperature Tessellation Tessellation Tetrahedron Theorem Thermometer Three dimensional Tools Transformation indicates grade level/levels that use the vocabulary word 11

12 I Transformation Translation Translation Transversal Trapezoid Trapezoid Tree diagram Triangle Triangle Trinomial Two dimensional Under Unit price Unit rate Unlike fractions Value Variable Vector Venn diagram Vertex Vertex Vertical Vertical angles Vertical angles Vertices Volume Volume Week Weight Whole Whole number x-axis x-intercept y-axis y-intercept Zero property of multiplication indicates grade level/levels that use the vocabulary word 12

Math Vocabulary Grades PK - 5

Math Vocabulary Grades PK - 5 Math Vocabulary ades P - 5 P 1 2 3 4 5 < Symbol used to compare two numbers with the lesser number given first > Symbol used to compare two numbers with the greater number given first a. m. The time between