Basic Operations
Addition, subtraction, multiplication, and division of whole numbers — excludes fractions (see fraction-operations) and decimals (see decimal-operations)
Order of Operations
Evaluating expressions using PEMDAS — includes custom operation symbol problems (e.g., a◆b = a − 3b)
Integers & Negatives
Operations with negative numbers and integer properties
Estimation
Rounding, approximation, and reasonableness of answers
Factors, Multiples & Primes
Prime factorization, GCF, LCM, and divisibility rules — includes odd/even number properties
Exponents & Roots
Integer and fractional exponents, square roots, and scientific notation — excludes variable exponent manipulation (see radical-rational-expressions) and polynomial expressions (see polynomials-quadratics)