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These pages are created only for skills with enough matching questions in the walkthrough catalogue to provide useful practice. Grouping comes from the recorded method for each walkthrough; Calc.nz does not infer grades or difficulty from question position.
Chain Rule
30 questions · Level 3 AS91578. Practise differentiating composite functions across powers, roots, logarithms, trigonometric functions, and exponential functions.
Product and Quotient Rules
30 questions · Level 3 AS91578. Practise differentiating products and quotients, including questions where one factor or expression also needs the chain rule.
Related Rates
12 questions · Level 3 AS91578. Practise connecting changing geometric or physical quantities through a shared equation and rates measured with respect to time.
Stationary Points and Optimisation
43 questions · Level 2 AS91262, Level 3 AS91578. Practise finding and classifying stationary or critical points, then using derivative evidence to maximise or minimise a model.
Parametric Differentiation
14 questions · Level 3 AS91578. Practise finding gradients and tangent information when both coordinates are expressed using a parameter.
Antidifferentiation
25 questions · Level 2 AS91262, Level 3 AS91579. Practise recovering a function from its derivative or rate, including power, logarithmic, exponential, motion, and initial-condition examples.
Integration Techniques
49 questions · Level 3 AS91579. Practise choosing and preparing an integration method from the structure of the integrand or from tabulated numerical data.
Differential Equations
23 questions · Level 3 AS91578, Level 3 AS91579. Practise solving separable differential equations and verifying proposed relationships with first or second derivatives.
Complex-number Algebra
88 questions · Level 3 AS91577. Practise exact algebra with complex numbers, conjugates, real and imaginary parts, polynomials, quadratics, surds, and radical equations.
Polar Form and De Moivre’s Theorem
27 questions · Level 3 AS91577. Practise modulus-and-argument calculations, polar or cis form, powers, and complete sets of complex roots.
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Page updated 9 August 2026 .