Lesson overview
Adding & Subtracting Clinical Quantities
Learn how to add quantities that belong together and subtract one total from another.
About 15 minutesClinical Maths FoundationsNo account required
Ready when you are
Start with short teaching slides, then answer the lesson questions. Your progress stays on this browser.
Learning outcomes
What you will learn
- identify which quantities belong together
- make sure the units match before adding
- add whole numbers and decimals accurately
- subtract one total from another
- read a positive or negative answer correctly
Clinical connection
Why this matters
You will use these skills when you total fluid intake and output, work out how much of an infusion remains, add parts of a dose, and compare one quantity with another.
Lesson plan
How the lesson works
- 1
Learn
Short teaching slides explain one idea at a time with plain-language examples.
- 2
Practise
Answer calculation or scenario questions and receive immediate feedback.
- 3
Finish
Complete the lesson check and save your learning progress on this browser.