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Method: Adding and Subtracting Decimals

Part of Integers & Decimals — GCSE Mathematics

This deep dive covers Method: Adding and Subtracting Decimals within Integers & Decimals for GCSE Mathematics. Revise Integers & Decimals in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 12 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 4 of 12

Practice

14 questions

Recall

22 flashcards

Method: Adding and Subtracting Decimals

1 Write numbers vertically, aligning decimal points
2 Fill empty places with zeros (e.g., 12.3 → 12.30)
3 Add/subtract as normal, column by column
4 Place decimal point in answer directly below others

Keep building this topic

Read this section alongside the surrounding pages in Integers & Decimals. That gives you the full topic sequence instead of a single isolated revision point.

Operations with DecimalsMethod: Multiplying DecimalsNumbers Big and SmallWhat Are Integers and Decimals?

Practice Questions for Integers & Decimals

What is the value of the digit 4 in the number 12.345?

  • A. 4
  • B. 0.4
  • C. 0.04
  • D. 40
1 markfoundation

Explain how to multiply two decimal numbers without a calculator.

2 marksstandard

Quick Recall Flashcards

What is a decimal?
A number with a decimal point showing parts of a whole. The digits after the point represent tenths, hundredths, thousandths, etc.
Money calculation
£4.25 + £12.30 + £8.75 Line up decimals: 4.25 12.30 + 8.75 ------ 25.30 Answer: £25.30

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Operations with Decimals

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Method: Multiplying Decimals