Indices and scientific notation — Topic Review | Year 9

QUICK RECAP

Connect the ideas

Match the operation to the correct index law; addition is not multiplication.

A zero power is 1 only for a non-zero base, and a negative power gives a reciprocal.

Apply an outer power to every factor, including the coefficient.

Standard scientific notation has a coefficient from 1 inclusive to 10 exclusive.

Align powers before adding or subtracting scientific quantities.

Convert to compatible units and interpret the final magnitude.

Complete each paper and show your working.

Indices and scientific notation — practice test 1
16 questions · 39 marks · 55 minutes · Scientific calculator
Build fluency with index laws, scientific notation and compatible units.
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Indices and scientific notation — practice test 2
16 questions · 40 marks · 55 minutes · Scientific calculator
A second balanced paper with explanation, error analysis and practical calculations.
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Indices and scientific notation — practice test 3
16 questions · 46 marks · 60 minutes · Scientific calculator
Apply powers and scientific notation to models, measurements and multi-step situations.
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