Math: the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically.
Also, mathematical procedures, operations, or properties.
Dictionary : Letter R
Radian
Radical
Radicand
Radius
Radius (polygon)
Radix
Random
Random Sample
Range (statistics)
Range of a Function
Rate
Rate of Return
Ratio
Rational Expression
Rational Function
Rational Number
Ray
Real Number
Reciprocal
Rectangle
Rectangular Coordinates
Rectangular Prism
Recurring Decimal
Recursion
Recursive
Reduce
Reflection
Reflection Symmetry
Reflex Angle
Regrouping
Regular
Regular Polygon
Regular Polyhedron
Relative Frequency
Relatively Prime
Remainder
Remainder Theorem
Rent
Repeating Decimal
Result
Retail Price
Revolution
Rhombus
RHS
Right Angle
Right Triangle
Right-Angled Triangle
Rigid
Rise
Risk
Risk Management
RMS
Roman Numerals
Root
Root Mean Square
Rotation
Rotational Symmetry
Rounding
Row
RPM
Rule of 72
Ruler
Run
