Free Grade 3 Introducing Comparing Decimals Flashcards
Free Grade 3 flashcards for Introducing Comparing Decimals: 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.
- RememberIdentify introducing comparing decimals
Identify introducing comparing decimals accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing comparing decimals
Explain introducing comparing decimals accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing comparing decimals
Calculate introducing comparing decimals accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing comparing decimals
Compare introducing comparing decimals 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 Comparing Decimals 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.
- 1.97.5 − 9.9 = ?[1]
- 2.83.7 − 83.2 = ?[1]
- 3.41.4 − 19.6 = ?[1]
- 4.37.2 − 2.1 = ?[1]
- 5.6.23 − 2.23 = ?[2]
- 6.1.05 + 4.81 = ?[2]
- 7.7.44 − 2.39 = ?[2]
- 8.3.8 − 0.32 = ?[2]
- 9.0.389 × 8 = ?[3]
- 10.0.812 × 4 = ?[3]
- 11.0.268 × 7 = ?[3]
- 12.0.832 × 5 = ?[3]
Show answers and working
1. 87.6
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Subtract as whole numbers: 87.6.
2. 0.5
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Subtract as whole numbers: 0.5.
3. 21.8
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Subtract as whole numbers: 21.8.
4. 35.1
Line up the decimal points. Fill gaps with zeros so both have 1 decimal place. Subtract as whole numbers: 35.1.
5. 4
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 4.
6. 5.86
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Add as whole numbers: 5.86.
7. 5.05
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 5.05.
8. 3.48
Line up the decimal points. Fill gaps with zeros so both have 2 decimal places. Subtract as whole numbers: 3.48.
9. 3.112
Ignore the decimal: 389 × 8 = 3112. Put back 3 decimal places: 3.112.
10. 3.248
Ignore the decimal: 812 × 4 = 3248. Put back 3 decimal places: 3.248.
11. 1.876
Ignore the decimal: 268 × 7 = 1876. Put back 3 decimal places: 1.876.
12. 4.16
Ignore the decimal: 832 × 5 = 4160. Put back 3 decimal places: 4.16.
Worked examples
80.1 + 63.3 = ?
- Line up the decimal points.
- Fill gaps with zeros so both have 1 decimal place.
- Add as whole numbers: 143.4.
- Answer: 143.4
9.43 + 8.96 = ?
- Line up the decimal points.
- Fill gaps with zeros so both have 2 decimal places.
- Add as whole numbers: 18.39.
- Answer: 18.39
0.315 × 6 = ?
- Ignore the decimal: 315 × 6 = 1890.
- Put back 3 decimal places: 1.89.
- Answer: 1.89
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 Comparing Decimals flashcards really free?
- Yes. Every flashcards 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 Reading Decimals. Each one has its own free lesson, worksheet and quiz.
- How is the flashcards 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 Comparing Decimals?
- Move on to Working with Comparing Decimals, Comparing Decimals in Context, Decimal Place Value, Reading Decimals, which build directly on this idea.
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