Integer part, floor function, sum, limit, C1-ish.
[STEP II 2001 Question 2 (Pure)]
Rational function, algebraic, intersection, oblique asymptote, C1-ish.
[STEP III 2000 Question 4 (Pure)]
Reciprocal and hyperbola functions, tangent, square, coordinate geometry, C1.
[STEP III 2000 Question 1 (Pure)]
Factorisation, inequality, coordinate geometry, circles and lines, C1.
[STEP I 2000 Question 6 (Pure)]
Transcendental equation, inequality, roots of equation, differentiation.
[STEP III 1999 Question 2 (Pure)]
Differentiation, stationary points, C1.
[STEP II 1999 Question 7 (Pure)]
Modulus function, inequality, C1.
[STEP I 1999 Question 4 (Pure)]
Differentiation, stationary points, statistical physics, integral.
[STEP III 1998 Question 7 (Pure)]
Trigonometry, differentiation, stationary points.
[STEP III 1998 Question 1 (Pure)]
Logarithmic and exponential function, maximum, differentiation, root of equation, C1.
[STEP III 1997 Question 2 (Pure)]
Underground Mathematics: Selected worked STEP questions
STEP Question database
University of Cambridge Mathematics Faculty: What do we look for?
University of Cambridge Mathematics Faculty: Information about STEP
University of Cambridge Admissions Office: Undergraduate course information for Mathematics
Stephen Siklos' "Advanced Problems in Mathematics" book (external link)
MEI: Worked solutions to STEP questions (external link)
OCR: Exam board information about STEP (external link)
AMSP (Advanced Maths Support programme): Support for University Admission Tests (external link)