Free Grade 3 Introducing Reading Decimals Techniques Lesson Plans
Free Grade 3 lesson plans for Introducing Reading Decimals Techniques: 12 real questions with a full answer key and worked solutions. Decimals extend place value past the ones: tenths, hundredths, thousandths. Line up decimal points when adding or subtracting.
Free
Core
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing reading decimals techniques
Explain introducing reading decimals techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing reading decimals techniques
Calculate introducing reading decimals techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing reading decimals techniques
Compare introducing reading decimals techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing reading decimals techniques
Justify introducing reading decimals techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Introducing Reading Decimals Techniques works
Decimals extend place value past the ones: tenths, hundredths, thousandths. Line up decimal points when adding or subtracting.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.81.8 + 31.2 = ?[1]
- 2.88.2 − 25.5 = ?[1]
- 3.13.2 + 34.8 = ?[1]
- 4.99.5 + 59.2 = ?[1]
- 5.0.72 − 0.38 = ?[2]
- 6.4.08 + 2.37 = ?[2]
- 7.4.99 − 0.91 = ?[2]
- 8.5.39 − 0.02 = ?[2]
- 9.0.638 × 6 = ?[3]
- 10.0.596 × 5 = ?[3]
- 11.0.197 × 6 = ?[3]
- 12.0.28 × 3 = ?[3]
Show answers and working
1. 113
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Add as whole numbers: 113.
2. 62.7
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Subtract as whole numbers: 62.7.
3. 48
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Add as whole numbers: 48.
4. 158.7
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Add as whole numbers: 158.7.
5. 0.34
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 0.34.
6. 6.45
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Add as whole numbers: 6.45.
7. 4.08
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 4.08.
8. 5.37
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 5.37.
9. 3.828
Ignore the decimal: 638 × 6 = 3828. Put back 3 decimal places: 3.828.
10. 2.98
Ignore the decimal: 596 × 5 = 2980. Put back 3 decimal places: 2.98.
11. 1.182
Ignore the decimal: 197 × 6 = 1182. Put back 3 decimal places: 1.182.
12. 0.84
Ignore the decimal: 280 × 3 = 840. Put back 3 decimal places: 0.84.
Worked examples
80 − 63.9 = ?
- Line up the decimal points.
- Fill gaps with zeros so both have 1 decimal place.
- Subtract as whole numbers: 16.1.
- Answer: 16.1
3.7 + 8.01 = ?
- Line up the decimal points.
- Fill gaps with zeros so both have 2 decimal places.
- Add as whole numbers: 11.71.
- Answer: 11.71
0.096 × 6 = ?
- Ignore the decimal: 96 × 6 = 576.
- Put back 3 decimal places: 0.576.
- Answer: 0.576
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Thinks 0.25 is bigger than 0.3 because 25 > 3.
Correction: Fill with zeros: 0.25 vs 0.30.
Lines up the last digits instead of the decimal points.
Correction: Decimal points go in one straight column.
Teacher tips
- · Use money to make tenths and hundredths concrete.
Parent tips
- · Add up prices with cents together.
Real-life applications
- · Money, measurements, race times.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Introducing Reading Decimals Techniques lesson plan really free?
- Yes. Every lesson plans on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Introducing Reading Decimals Essentials, Decimal Place Value. Each one has its own free lesson, worksheet and quiz.
- How is the lesson plan sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Introducing Reading Decimals Techniques?
- Move on to Introducing Reading Decimals Word Problems, Introducing Reading Decimals Common Errors, Working with Reading Decimals, Reading Decimals in Context, which build directly on this idea.
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