Free Grade 3 Introducing Negative Numbers Word Problems Lesson Plans
Free Grade 3 lesson plans for Introducing Negative Numbers Word Problems: 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
Core
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing negative numbers word problems
Explain introducing negative numbers word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing negative numbers word problems
Calculate introducing negative numbers word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing negative numbers word problems
Compare introducing negative numbers word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing negative numbers word problems
Justify introducing negative numbers word problems 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 Word Problems 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.
- 1.6 − 6 = ?[1]
- 2.7 − (-7) = ?[1]
- 3.8 − 4 = ?[1]
- 4.-4 − (-3) = ?[1]
- 5.1 + (-1) = ?[2]
- 6.-9 − 7 = ?[2]
- 7.14 − (-14) = ?[2]
- 8.-17 − (-11) = ?[2]
- 9.-26 × 11 = ?[3]
- 10.-26 × (-30) = ?[3]
- 11.-11 − 9 = ?[3]
- 12.21 × 12 = ?[3]
Show answers and working
1. 0
Subtracting 6 is the same as adding -6. 6 + (-6) = 0
2. 14
Subtracting (-7) is the same as adding 7. 7 + 7 = 14
3. 4
Subtracting 4 is the same as adding -4. 8 + (-4) = 4
4. -1
Subtracting (-3) is the same as adding 3. -4 + 3 = -1
5. 0
Start at 1 on a number line. Move 1 left. You land on 0.
6. -16
Subtracting 7 is the same as adding -7. -9 + (-7) = -16
7. 28
Subtracting (-14) is the same as adding 14. 14 + 14 = 28
8. -6
Subtracting (-11) is the same as adding 11. -17 + 11 = -6
9. -286
Multiply the sizes: 26 × 11 = 286. Same signs give positive, different signs give negative. Answer: -286
10. 780
Multiply the sizes: 26 × 30 = 780. Same signs give positive, different signs give negative. Answer: 780
11. -20
Subtracting 9 is the same as adding -9. -11 + (-9) = -20
12. 252
Multiply the sizes: 21 × 12 = 252. Same signs give positive, different signs give negative. Answer: 252
Worked examples
7 + 9 = ?
- Start at 7 on a number line.
- Move 9 right.
- You land on 16.
- Answer: 16
-12 × (-14) = ?
- Multiply the sizes: 12 × 14 = 168.
- Same signs give positive, different signs give negative.
- Answer: 168
- Answer: 168
-9 − 21 = ?
- Subtracting 21 is the same as adding -21.
- -9 + (-21) = -30
- Answer: -30
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 Word Problems 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 Negative Numbers Techniques, Introducing Negative Numbers Essentials, Number Formation. 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 Negative Numbers Word Problems?
- Move on to Introducing Negative Numbers Common Errors, Working with Negative Numbers, Negative Numbers in Context, which build directly on this idea.
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