Free Grade 3 Adding Integers in Context Techniques Lesson Plans
Free Grade 3 lesson plans for Adding Integers in Context Techniques: 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
Foundation
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify adding integers in context techniques
Identify adding integers in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain adding integers in context techniques
Explain adding integers in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate adding integers in context techniques
Calculate adding integers in context techniques accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare adding integers in context techniques
Compare adding integers in context 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 Adding Integers in Context Techniques 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 + (-10) = ?[1]
- 2.7 − 7 = ?[1]
- 3.2 − (-10) = ?[1]
- 4.9 + (-4) = ?[1]
- 5.-4 − (-4) = ?[2]
- 6.9 × 20 = ?[2]
- 7.10 + (-12) = ?[2]
- 8.6 × 3 = ?[2]
- 9.-12 × (-14) = ?[3]
- 10.-18 + 8 = ?[3]
- 11.9 + (-12) = ?[3]
- 12.-13 − (-6) = ?[3]
Show answers and working
1. -16
Start at -6 on a number line. Move 10 left. You land on -16.
2. 0
Subtracting 7 is the same as adding -7. 7 + (-7) = 0
3. 12
Subtracting (-10) is the same as adding 10. 2 + 10 = 12
4. 5
Start at 9 on a number line. Move 4 left. You land on 5.
5. 0
Subtracting (-4) is the same as adding 4. -4 + 4 = 0
6. 180
Multiply the sizes: 9 × 20 = 180. Same signs give positive, different signs give negative. Answer: 180
7. -2
Start at 10 on a number line. Move 12 left. You land on -2.
8. 18
Multiply the sizes: 6 × 3 = 18. Same signs give positive, different signs give negative. Answer: 18
9. 168
Multiply the sizes: 12 × 14 = 168. Same signs give positive, different signs give negative. Answer: 168
10. -10
Start at -18 on a number line. Move 8 right. You land on -10.
11. -3
Start at 9 on a number line. Move 12 left. You land on -3.
12. -7
Subtracting (-6) is the same as adding 6. -13 + 6 = -7
Worked examples
10 − (-6) = ?
- Subtracting (-6) is the same as adding 6.
- 10 + 6 = 16
- Answer: 16
17 + (-13) = ?
- Start at 17 on a number line.
- Move 13 left.
- You land on 4.
- Answer: 4
2 × (-12) = ?
- Multiply the sizes: 2 × 12 = 24.
- Same signs give positive, different signs give negative.
- Answer: -24
- Answer: -24
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 Adding Integers in Context 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 Adding Integers in Context Essentials, Working with Adding Integers. 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 Adding Integers in Context Techniques?
- Move on to Adding Integers in Context Word Problems, Adding Integers in Context Common Errors, Introducing Adding Integers, Working with Adding Integers, which build directly on this idea.
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