Free Grade 3 Working with Adding Integers Essentials Lessons
Free Grade 3 lessons for Working with 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
Foundation
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify working with adding integers essentials
Identify working with adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain working with adding integers essentials
Explain working with adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with adding integers essentials
Calculate working with adding integers essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with adding integers essentials
Compare working with 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 Working with 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 + 4 = ?[1]
- 2.-2 − 10 = ?[1]
- 3.2 + (-4) = ?[1]
- 4.5 + (-6) = ?[1]
- 5.4 × 6 = ?[2]
- 6.-5 × (-2) = ?[2]
- 7.-11 × 12 = ?[2]
- 8.-17 − 15 = ?[2]
- 9.14 + 18 = ?[3]
- 10.-3 × (-19) = ?[3]
- 11.18 − 9 = ?[3]
- 12.13 − 7 = ?[3]
Show answers and working
1. 3
Start at -1 on a number line. Move 4 right. You land on 3.
2. -12
Subtracting 10 is the same as adding -10. -2 + (-10) = -12
3. -2
Start at 2 on a number line. Move 4 left. You land on -2.
4. -1
Start at 5 on a number line. Move 6 left. You land on -1.
5. 24
Multiply the sizes: 4 × 6 = 24. Same signs give positive, different signs give negative. Answer: 24
6. 10
Multiply the sizes: 5 × 2 = 10. Same signs give positive, different signs give negative. Answer: 10
7. -132
Multiply the sizes: 11 × 12 = 132. Same signs give positive, different signs give negative. Answer: -132
8. -32
Subtracting 15 is the same as adding -15. -17 + (-15) = -32
9. 32
Start at 14 on a number line. Move 18 right. You land on 32.
10. 57
Multiply the sizes: 3 × 19 = 57. Same signs give positive, different signs give negative. Answer: 57
11. 9
Subtracting 9 is the same as adding -9. 18 + (-9) = 9
12. 6
Subtracting 7 is the same as adding -7. 13 + (-7) = 6
Worked examples
9 − 2 = ?
- Subtracting 2 is the same as adding -2.
- 9 + (-2) = 7
- Answer: 7
15 − (-14) = ?
- Subtracting (-14) is the same as adding 14.
- 15 + 14 = 29
- Answer: 29
0 − 23 = ?
- Subtracting 23 is the same as adding -23.
- 0 + (-23) = -23
- Answer: -23
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 Working with Adding Integers Essentials lesson really free?
- Yes. Every lessons 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 Introducing Adding Integers. Each one has its own free lesson, worksheet and quiz.
- How is the lesson 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 Working with Adding Integers Essentials?
- Move on to Working with Adding Integers Techniques, Working with Adding Integers Word Problems, Working with Adding Integers Common Errors, Introducing Adding Integers, which build directly on this idea.
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