Arithmetic & Numbers
Whole numbers, fractions, decimals, percentages, order of operations, and number properties.
Number Types & Classification22
Types of numbers: integers, rationals, reals, primes, composites, and number classification systems
Arithmetic Operations & Exponents17
Basic arithmetic operations, exponents, powers, roots, and order of operations
Fractions & Decimals12
Fractions, decimals, mixed numbers, and operations with fractions
Factors, Multiples & Divisibility8
Factors, multiples, GCF, LCM, prime factorization, and divisibility
Measurement, Estimation & Notation25
Measurement, scientific notation, rounding, significant digits, and mathematical notation
All Arithmetic & Numbers Terms A–Z (84)
- Accuracy
- Aleph Null
- Arithmetic
- Arithmetic Mean
- Average
- Braces
- Brackets
- Cardinal Numbers
- Composite Number
- Constant
- Decimal
- Denominator
- Difference
- Digit
- Even Number
- Exponent
- Exponentiation
- Factor of an Integer
- Factor Tree
- Formula
- Fraction
- Fraction Rules
- Fundamental Theorem of Arithmetic
- Greatest Common Factor
- Greek Alphabet
- Improper Fraction
- Inequality
- Integers
- Irrational Numbers
- Least Common Denominator
- Least Common Multiple
- Mean
- Measurement
- Median of a Set of Numbers
- Mixed Number
- Multiplicative Inverse of a Number
- Natural Numbers
- Negative Number
- Nonnegative
- Nonzero
- Number Line
- Numerator
- Odd Number
- Ordinal Numbers
- Parentheses
- Perfect Number
- Perfect Square
- Pi
- Positive Number
- Power
- Precision
- Prime Factorization
- Prime Number
- Product
- Proper Fraction
- Quadruple
- Quintuple
- Quotient
- Radical
- Radicand
- Ratio
- Rational Numbers
- Real Numbers
- Reduce a Fraction
- Relatively Prime
- Remainder
- Root Mean Square
- Root of a Number
- Rounding a Number
- Scientific Notation
- Significant Digits
- Simple Interest
- Square Root
- Strict Inequality
- Sum
- Surd
- Triple
- Trivial
- Truncating a Number
- Twin Primes
- Vinculum
- Weighted Average
- Whole Numbers
- Zero
Frequently Asked Questions
What is arithmetic?
Arithmetic is the oldest and most fundamental branch of mathematics, dealing with basic operations on numbers: addition, subtraction, multiplication, and division. It also covers concepts like fractions, decimals, percentages, and number properties.
What is the order of operations?
The order of operations (PEMDAS/BODMAS) specifies the sequence for evaluating expressions: Parentheses first, then Exponents, then Multiplication and Division (left to right), then Addition and Subtraction (left to right).