Free Grade 3 Introducing Negative Numbers Common Errors Worksheets
Free Grade 3 worksheets for Introducing Negative Numbers Common Errors: 12 real questions with a full answer key and worked solutions. Integers include negative numbers. On a number line, adding moves right and subtracting moves left. Subtracting a negative is the same as adding.
Free
Stretch
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing negative numbers common errors
Explain introducing negative numbers common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing negative numbers common errors
Calculate introducing negative numbers common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing negative numbers common errors
Compare introducing negative numbers common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing negative numbers common errors
Justify introducing negative numbers common errors 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 Negative Numbers Common Errors works
Integers include negative numbers. On a number line, adding moves right and subtracting moves left. Subtracting a negative is the same as adding.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.9 + (-8) = ?[1]
- 2.4 + 8 = ?[1]
- 3.3 − 4 = ?[1]
- 4.-4 + (-5) = ?[1]
- 5.-19 × (-13) = ?[2]
- 6.6 − (-16) = ?[2]
- 7.12 + (-9) = ?[2]
- 8.-17 − (-17) = ?[2]
- 9.29 + 9 = ?[3]
- 10.3 − (-8) = ?[3]
- 11.20 × (-28) = ?[3]
- 12.2 + 28 = ?[3]
Show answers and working
1. 1
Start at 9 on a number line. Move 8 left. You land on 1.
2. 12
Start at 4 on a number line. Move 8 right. You land on 12.
3. -1
Subtracting 4 is the same as adding -4. 3 + (-4) = -1
4. -9
Start at -4 on a number line. Move 5 left. You land on -9.
5. 247
Multiply the sizes: 19 × 13 = 247. Same signs give positive, different signs give negative. Answer: 247
6. 22
Subtracting (-16) is the same as adding 16. 6 + 16 = 22
7. 3
Start at 12 on a number line. Move 9 left. You land on 3.
8. 0
Subtracting (-17) is the same as adding 17. -17 + 17 = 0
9. 38
Start at 29 on a number line. Move 9 right. You land on 38.
10. 11
Subtracting (-8) is the same as adding 8. 3 + 8 = 11
11. -560
Multiply the sizes: 20 × 28 = 560. Same signs give positive, different signs give negative. Answer: -560
12. 30
Start at 2 on a number line. Move 28 right. You land on 30.
Worked examples
9 − 7 = ?
- Subtracting 7 is the same as adding -7.
- 9 + (-7) = 2
- Answer: 2
-7 × 12 = ?
- Multiply the sizes: 7 × 12 = 84.
- Same signs give positive, different signs give negative.
- Answer: -84
- Answer: -84
4 − (-7) = ?
- Subtracting (-7) is the same as adding 7.
- 4 + 7 = 11
- Answer: 11
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 −8 is bigger than −3.
Correction: Further left on the number line means smaller.
Treats − (−4) as −4.
Correction: Two minus signs together become a plus.
Teacher tips
- · Use a vertical number line like a thermometer.
Parent tips
- · Compare winter temperatures from the weather forecast.
Real-life applications
- · Temperatures below zero, bank balances, floors below ground.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Introducing Negative Numbers Common Errors worksheet really free?
- Yes. Every worksheets 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 Negative Numbers Word Problems, Introducing Negative Numbers Techniques, Number Formation. Each one has its own free lesson, worksheet and quiz.
- How is the worksheet 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 Negative Numbers Common Errors?
- Move on to Working with Negative Numbers, Negative Numbers in Context, which build directly on this idea.
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