Free Grade 3 Introducing Negative Numbers Techniques in Examinations Lessons
Free Grade 3 lessons for Introducing Negative Numbers Techniques in Examinations: 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
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing negative numbers techniques in examinations
Identify introducing negative numbers techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing negative numbers techniques in examinations
Explain introducing negative numbers techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing negative numbers techniques in examinations
Calculate introducing negative numbers techniques in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing negative numbers techniques in examinations
Compare introducing negative numbers techniques in examinations 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 Techniques in Examinations 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 + 5 = ?[1]
- 2.-2 + (-6) = ?[1]
- 3.-7 − (-4) = ?[1]
- 4.1 + (-3) = ?[1]
- 5.-16 − 18 = ?[2]
- 6.-10 × (-2) = ?[2]
- 7.20 − 4 = ?[2]
- 8.19 − (-2) = ?[2]
- 9.-24 × (-1) = ?[3]
- 10.0 + 0 = ?[3]
- 11.7 − (-26) = ?[3]
- 12.17 × (-30) = ?[3]
Show answers and working
1. 2
Start at -3 on a number line. Move 5 right. You land on 2.
2. -8
Start at -2 on a number line. Move 6 left. You land on -8.
3. -3
Subtracting (-4) is the same as adding 4. -7 + 4 = -3
4. -2
Start at 1 on a number line. Move 3 left. You land on -2.
5. -34
Subtracting 18 is the same as adding -18. -16 + (-18) = -34
6. 20
Multiply the sizes: 10 × 2 = 20. Same signs give positive, different signs give negative. Answer: 20
7. 16
Subtracting 4 is the same as adding -4. 20 + (-4) = 16
8. 21
Subtracting (-2) is the same as adding 2. 19 + 2 = 21
9. 24
Multiply the sizes: 24 × 1 = 24. Same signs give positive, different signs give negative. Answer: 24
10. 0
Start at 0 on a number line. Move 0 right. You land on 0.
11. 33
Subtracting (-26) is the same as adding 26. 7 + 26 = 33
12. -510
Multiply the sizes: 17 × 30 = 510. Same signs give positive, different signs give negative. Answer: -510
Worked examples
-2 − (-6) = ?
- Subtracting (-6) is the same as adding 6.
- -2 + 6 = 4
- Answer: 4
-11 + 12 = ?
- Start at -11 on a number line.
- Move 12 right.
- You land on 1.
- Answer: 1
12 × 3 = ?
- Multiply the sizes: 12 × 3 = 36.
- Same signs give positive, different signs give negative.
- Answer: 36
- Answer: 36
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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- Start with Working with Introducing Negative Numbers Techniques, Rules and Methods in Introducing Negative Numbers Techniques, Introducing Negative Numbers Essentials. Each one has its own free lesson, worksheet and quiz.
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- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
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- Move on to Introducing Negative Numbers Essentials, Introducing Negative Numbers Word Problems, Introducing Negative Numbers Common Errors, which build directly on this idea.
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