Free Grade 3 Subtracting Integers in Context Lesson Plans
Free Grade 3 lesson plans for Subtracting Integers in Context: 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
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify subtracting integers in context
Identify subtracting integers in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain subtracting integers in context
Explain subtracting integers in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate subtracting integers in context
Calculate subtracting integers in context accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare subtracting integers in context
Compare subtracting integers in context 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 Subtracting Integers in Context 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.
- 1.10 − (-4) = ?[1]
- 2.8 − (-5) = ?[1]
- 3.-5 + 9 = ?[1]
- 4.-7 + (-2) = ?[1]
- 5.-11 − (-15) = ?[2]
- 6.-14 × 0 = ?[2]
- 7.-9 + 18 = ?[2]
- 8.0 − 6 = ?[2]
- 9.-25 − 0 = ?[3]
- 10.23 × 4 = ?[3]
- 11.-2 − 20 = ?[3]
- 12.2 − 25 = ?[3]
Show answers and working
1. 14
Subtracting (-4) is the same as adding 4. 10 + 4 = 14
2. 13
Subtracting (-5) is the same as adding 5. 8 + 5 = 13
3. 4
Start at -5 on a number line. Move 9 right. You land on 4.
4. -9
Start at -7 on a number line. Move 2 left. You land on -9.
5. 4
Subtracting (-15) is the same as adding 15. -11 + 15 = 4
6. 0
Multiply the sizes: 14 × 0 = 0. Same signs give positive, different signs give negative. Answer: 0
7. 9
Start at -9 on a number line. Move 18 right. You land on 9.
8. -6
Subtracting 6 is the same as adding -6. 0 + (-6) = -6
9. -25
Subtracting 0 is the same as adding 0. -25 + 0 = -25
10. 92
Multiply the sizes: 23 × 4 = 92. Same signs give positive, different signs give negative. Answer: 92
11. -22
Subtracting 20 is the same as adding -20. -2 + (-20) = -22
12. -23
Subtracting 25 is the same as adding -25. 2 + (-25) = -23
Worked examples
-7 − 4 = ?
- Subtracting 4 is the same as adding -4.
- -7 + (-4) = -11
- Answer: -11
15 + 12 = ?
- Start at 15 on a number line.
- Move 12 right.
- You land on 27.
- Answer: 27
30 × (-24) = ?
- Multiply the sizes: 30 × 24 = 720.
- Same signs give positive, different signs give negative.
- Answer: -720
- Answer: -720
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 Subtracting Integers in Context 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 Working with Subtracting Integers, Introducing Subtracting Integers, 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 Subtracting Integers in Context?
- Move on to Negative Numbers, Integer Number Line, Adding Integers, Multiplying Integers, which build directly on this idea.
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