Free Grade 3 Integer Number Line Lesson Plans
Free Grade 3 lesson plans for Integer Number Line: 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
Higher
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify integer number line
Identify integer number line accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain integer number line
Explain integer number line accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate integer number line
Calculate integer number line accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare integer number line
Compare integer number line 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 Integer Number Line 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.-3 − 10 = ?[1]
- 2.-6 + 7 = ?[1]
- 3.-6 − (-10) = ?[1]
- 4.9 + 0 = ?[1]
- 5.16 + 19 = ?[2]
- 6.-2 × (-10) = ?[2]
- 7.-15 − 16 = ?[2]
- 8.13 × (-7) = ?[2]
- 9.17 × (-16) = ?[3]
- 10.14 × 24 = ?[3]
- 11.-20 × 12 = ?[3]
- 12.18 × 19 = ?[3]
Show answers and working
1. -13
Subtracting 10 is the same as adding -10. -3 + (-10) = -13
2. 1
Start at -6 on a number line. Move 7 right. You land on 1.
3. 4
Subtracting (-10) is the same as adding 10. -6 + 10 = 4
4. 9
Start at 9 on a number line. Move 0 right. You land on 9.
5. 35
Start at 16 on a number line. Move 19 right. You land on 35.
6. 20
Multiply the sizes: 2 × 10 = 20. Same signs give positive, different signs give negative. Answer: 20
7. -31
Subtracting 16 is the same as adding -16. -15 + (-16) = -31
8. -91
Multiply the sizes: 13 × 7 = 91. Same signs give positive, different signs give negative. Answer: -91
9. -272
Multiply the sizes: 17 × 16 = 272. Same signs give positive, different signs give negative. Answer: -272
10. 336
Multiply the sizes: 14 × 24 = 336. Same signs give positive, different signs give negative. Answer: 336
11. -240
Multiply the sizes: 20 × 12 = 240. Same signs give positive, different signs give negative. Answer: -240
12. 342
Multiply the sizes: 18 × 19 = 342. Same signs give positive, different signs give negative. Answer: 342
Worked examples
6 − 7 = ?
- Subtracting 7 is the same as adding -7.
- 6 + (-7) = -1
- Answer: -1
-8 + (-16) = ?
- Start at -8 on a number line.
- Move 16 left.
- You land on -24.
- Answer: -24
-6 × 10 = ?
- Multiply the sizes: 6 × 10 = 60.
- Same signs give positive, different signs give negative.
- Answer: -60
- Answer: -60
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.
Every free resource for Integer Number Line
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Frequently asked
- Is this Grade 3 Integer Number Line 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 Negative Numbers, 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 Integer Number Line?
- Move on to Adding Integers, Subtracting Integers, Multiplying Integers, Absolute Value, which build directly on this idea.
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