K- 5 Mathematics Mastery Vocabulary List

• Addends

• Fraction, continued

• Addition - Ninth (Ninths)

- Tenth (Tenths)

 • All Together

- Whole

 • Array

• Greater Than

• Common Factor

• Less Than

• Common Multiple

• Long Division

• Composite Number

• Minus

 • Count

• More Than

 • Count Back

• Most

• Count On

• Multiple

• Count Up

- Least Common Multiple (L.C.M.)

 • Decimal

• Multiplication

 • Denominator

• Number

 • Difference

• Number Sentence

 • Digit

• Numeral

• Dividend

• Numerator

• Divisible

• Odd Number

• Division

• Part-Part Whole

 • Divisor

• Percent

 • Equal

• Place Value

 • Equal Groups

• Plus

• Equivalent

• Prime Number

• Estimation/ Estimate

• Product

• Even Number

• Quotient

• Expanded Form

• Reciprocal

 • Exponent

• Regroup/ Trade

• Fact Family

• Remainder

• Factor

• Rounding - Greatest Common Factor (G.C.F.)

• Set

 • Factor Tree

• Simplest Form

 • First-Tenth

• Standard Form

• Fraction

• Subtraction - Benchmark Fraction(s)

• Sum - Common Denominator (Like Fractions)

• Whole Part-Part - Mixed Number

- Unlike Fractions

 • Whole Number

- Half (Halves)

• Zero

- Third (Thirds)

- Fourth (Fourths)

- Fifth (Fifths)

- Sixth (Sixths)

- Eighth (Eighths)

• Customary System

- Cup

- Pint

- Quart

- Gallon

- Inch (")

- Foot (’)

- Yard

- Mile

- Ounce

- Pound

- Ton

• Days of the Week

• Degree

- Angle Measure (°)

- Fahrenheit (°F)

- Celsius (°C)

• Depth

• Dimension(s)

• Dozen

• Elapsed Time

• Empty

• Few/Fewer/Fewest

• Half-Past

• Heavy/Heavier/Heaviest

• Length

• Light/Lighter/Lightest

• Long/Longer/Longest

• Many

• Metric System

- Millimeter

- Centimeter

- Meter

- Kilometer

- Gram

- Kilogram

- Liter

• Money

- Value

- Coins

- Dollars

• Months of the Year

• Quarter-After

• Quarter-To

• Reasonable Answer

• Ruler

- Half Inch

- Quarter Inch

- Eighth Inch

- Sixteenth Inch

• Seasons

• Short/Shorter/Shortest

• Tall/Taller/Tallest

• Temperature

• Time

• Units

- Square Units

- Cubic Units

• Width

- Associative Property (Grouping Property)

- Commutative Property (Order Property)

- Distributive Property

- Identity Property

- Zero Property

- Acute Angle

- Benchmark Angle

- Obtuse Angle

- Right Angle

- Closed Figure

- Open Figure

- Triangle

- Quadrilateral

- Pentagon

- Hexagon

- Heptagon

- Octagon

- Nonagon

- Decagon

- Irregular Polygon

- Regular Polygon

- Cube

- Rectangular Prism

- Triangular Prism

- Rectangular

- Square Pyramid

- Triangular Pyramid

- Symmetrical

- Line o Symmetry

- Line Symmetry

- Turn/Rotational

- Acute Triangle

- Equilateral Triangle

- Isosceles Triangle

- Obtuse Triangle

- Right Triangle

- Scalene Triangle

- Parallelogram

- Rectangle

- Rhombus

- Square

- Trapezoid