Topic module

Fractions, Decimals and Percentages

Move accurately among equivalent fractional, decimal and percentage forms.

Long-form learning

Concept to Risk to Memory to Check-up

Build an accurate method first, add controlled pace second, and follow the instructions shown in the official assessment for every timed section.

Core concepts

Concept 1

Equivalent forms

Exam cue: Choose one consistent form, identify the base quantity, and show the conversion before calculating.

Concept 2

Percentage of an amount

Exam cue: Test whether the result is sensible relative to 0%, 50% and 100%.

Concept 3

Percentage change

Risk pitfalls and guardrails

Applying a percentage to the wrong base or treating percentage points as percent change.

Guardrail: Do not turn a broad public ability or familiarisation format into a claim about secure Royal Navy test content.

Memory anchors

What is the core aim in Fractions, Decimals and Percentages?

Move accurately among equivalent fractional, decimal and percentage forms.

What is a dependable first move for Fractions, Decimals and Percentages?

Choose one consistent form, identify the base quantity, and show the conversion before calculating.

Which check protects accuracy in Fractions, Decimals and Percentages?

Test whether the result is sensible relative to 0%, 50% and 100%.

What common error should you avoid in Fractions, Decimals and Percentages?

Applying a percentage to the wrong base or treating percentage points as percent change.

How should pace be developed for Fractions, Decimals and Percentages?

Make the method accurate without time pressure, then shorten the working cycle while keeping the same checks.

Checkpoint rule

Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.

Knowledge Check (after reading)

Short check-up to confirm understanding of this module.

1-2 question checkpoint

A calibration set contains 240 readings. What number of readings is 15% of the set?

A 320-litre supply is 25% used. How many litres are used?

Answer all questions to submit.

Next step personalized recommendations

Move forward only after this module is stable.

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