Free Grade 3 Introducing Adding Integers Essentials Lesson Plans
Free Grade 3 lesson plans for Introducing Adding Integers Essentials: 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
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing adding integers essentials
Identify introducing adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing adding integers essentials
Explain introducing adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing adding integers essentials
Calculate introducing adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing adding integers essentials
Compare introducing adding integers essentials 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 Adding Integers Essentials 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.
- 1.1 − 9 = ?[1]
- 2.9 − (-6) = ?[1]
- 3.-10 + 0 = ?[1]
- 4.7 + 0 = ?[1]
- 5.-18 + (-12) = ?[2]
- 6.17 + (-15) = ?[2]
- 7.-14 × 0 = ?[2]
- 8.6 − 14 = ?[2]
- 9.-4 × 2 = ?[3]
- 10.15 × (-2) = ?[3]
- 11.-18 + 9 = ?[3]
- 12.27 × (-30) = ?[3]
Show answers and working
1. -8
Subtracting 9 is the same as adding -9. 1 + (-9) = -8
2. 15
Subtracting (-6) is the same as adding 6. 9 + 6 = 15
3. -10
Start at -10 on a number line. Move 0 right. You land on -10.
4. 7
Start at 7 on a number line. Move 0 right. You land on 7.
5. -30
Start at -18 on a number line. Move 12 left. You land on -30.
6. 2
Start at 17 on a number line. Move 15 left. You land on 2.
7. 0
Multiply the sizes: 14 × 0 = 0. Same signs give positive, different signs give negative. Answer: 0
8. -8
Subtracting 14 is the same as adding -14. 6 + (-14) = -8
9. -8
Multiply the sizes: 4 × 2 = 8. Same signs give positive, different signs give negative. Answer: -8
10. -30
Multiply the sizes: 15 × 2 = 30. Same signs give positive, different signs give negative. Answer: -30
11. -9
Start at -18 on a number line. Move 9 right. You land on -9.
12. -810
Multiply the sizes: 27 × 30 = 810. Same signs give positive, different signs give negative. Answer: -810
Worked examples
1 − (-7) = ?
- Subtracting (-7) is the same as adding 7.
- 1 + 7 = 8
- Answer: 8
4 + (-2) = ?
- Start at 4 on a number line.
- Move 2 left.
- You land on 2.
- Answer: 2
29 + 9 = ?
- Start at 29 on a number line.
- Move 9 right.
- You land on 38.
- Answer: 38
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 Adding Integers Essentials 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 Integer Number Line. 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 Adding Integers Essentials?
- Move on to Introducing Adding Integers Techniques, Introducing Adding Integers Word Problems, Introducing Adding Integers Common Errors, Working with Adding Integers, which build directly on this idea.
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