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Safety in numbers

Last quality assured: 15/06/2026
30-minute read
Two nurses working side by side in front of a monitor

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Understand how to improve your confidence and competence when using maths as part of your nursing role. Use this resource to learn more about the importance of having sound maths skills for the provision of safe nursing care.

Who is this resource for?

All nurse roles

Resource lead(s)

Contact details for the resource lead:

K

Kim

Ball

Professional Lead for Primary Care

Resource contents

Below is an interactive list of resource contents, clicking will navigate you to that resource page.

Understand how to improve your confidence and competence when using maths as part of your nursing role. Use this resource to learn more about the importance of having sound maths skills for the provision of safe nursing care.

Develop your maths skills with this step-by-step method to facing number challenges at work. Using the acronym ‘PEACE’, learn how to plan, estimate, approach, calculate and evaluate your answer.

When administrating medication to patients in small doses, prescriptions are commonly written in grams and milligrams. Use this resource to build your knowledge and confidence when it comes to converting metric units accurately.

Learn the skills needed to estimate the answer to a number problem before you calculate it. This resource looks at how to spot mistakes with calculating doses and why simplifying the numbers will help you to reach the correct answer.

Find out more about how to calculate the right amount of liquid medicine to give a patient. Use practice examples to help you with your approach and explore the two main ways of calculating dosage, using mental arithmetic or a formula.

Learn more about how to calculate the required dosage of tablets to give to a patient, using the ‘PEACE’ problem-solving method. This resource looks at the different ways you might use mental arithmetic to work out and check your answer.

Increase your knowledge when it comes to calculations relating to giving fluid medicines over a period of time (continuous infusions), for example, drugs provided intravenously through an IV line.

The RCN delivers quality-assured and up-to-date resources for the nursing workforce. Reviewed annually, RCN Learn resources meet the RCN Nine Quality Standards.

Resource last reviewed 15/06/2026

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Downloaded content date

PDF created on: 22 Jul 2026.
Downloaded from: https://rcnlearn.rcn.org.uk/Search/Safety-in-numbers.
Please check: https://rcnlearn.rcn.org.uk for a more up-to-date version of this content.

Last reviewed: 15/06/2026

Last quality assured: 15/06/2026
30-minute read