Multiply decimals
- Multiply as whole numbers.
- Count total decimal places.
- Put the decimal point back.
Answer: 2.4 × 0.5 = 1.20 = 1.2
🔢 Number
Decimal multiplication
Learn decimal multiplication with a GCSE-style explanation, help guide, worked example, practice question and flashcards.
Global XP
Level 10 / 100 XP
1. Explanation
Key idea
- Decimal multiplication is part of decimals and appears often in KS3–GCSE maths.
- Multiply first, then use the total number of decimal places.
- Use the worked model, help guide, interactive question and flashcards to practise decimal multiplication until the steps feel automatic.
Real-life examples
- Shopping, sport, travel, science, design and everyday decisions all use this skill.
2. Visual
Decimal multiplication learning map
Understand the key idea → follow the help guide → practise a question → check your method → build speed with flashcards.
3. Help guide
How to tackle Decimal multiplication
- Learn the rule: Multiply first, then use the total number of decimal places.
- Worked model: Multiply as whole numbers. Count total decimal places. Put the decimal point back.
- Try the interactive question without looking at the answer first.
- Use the flashcards to test the rule, the method and a common check.
4. Worked examples
Step-by-step working
5. Interactive questions
Try it yourself
Calculate 1.2 × 0.3.
6. Flashcards
Master quick recall
Flip each card, then choose whether you know it or need more practice.
0 mastered
FrontRule for Decimal multiplication
BackMultiply first, then use the total number of decimal places.
FrontExample answer: Calculate 1.2 × 0.3.
Back1.2 has 1 decimal place and 0.3 has 1 decimal place, so 12 × 3 = 36 becomes 0.36.
FrontCommon check for Decimal multiplication
BackCheck units/notation, compare with an estimate, and make sure the answer matches the question.
7. Finish
Complete this topic
When you have read the examples, tried the question and reviewed flashcards, claim your topic completion XP.