Free Grade 3 Introducing Adding Integers Worksheets
Free Grade 3 worksheets for Introducing Adding Integers: 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
Core
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing adding integers
Explain introducing adding integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing adding integers
Calculate introducing adding integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing adding integers
Compare introducing adding integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing adding integers
Justify introducing adding integers 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 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.
- 1.7 + 7 = ?[1]
- 2.-2 − (-7) = ?[1]
- 3.-9 − 1 = ?[1]
- 4.1 − (-2) = ?[1]
- 5.-16 × 17 = ?[2]
- 6.-13 × 20 = ?[2]
- 7.-4 × 7 = ?[2]
- 8.-16 − (-17) = ?[2]
- 9.-3 × (-6) = ?[3]
- 10.26 − (-9) = ?[3]
- 11.8 × (-9) = ?[3]
- 12.-8 × (-19) = ?[3]
Show answers and working
1. 14
Start at 7 on a number line. Move 7 right. You land on 14.
2. 5
Subtracting (-7) is the same as adding 7. -2 + 7 = 5
3. -10
Subtracting 1 is the same as adding -1. -9 + (-1) = -10
4. 3
Subtracting (-2) is the same as adding 2. 1 + 2 = 3
5. -272
Multiply the sizes: 16 × 17 = 272. Same signs give positive, different signs give negative. Answer: -272
6. -260
Multiply the sizes: 13 × 20 = 260. Same signs give positive, different signs give negative. Answer: -260
7. -28
Multiply the sizes: 4 × 7 = 28. Same signs give positive, different signs give negative. Answer: -28
8. 1
Subtracting (-17) is the same as adding 17. -16 + 17 = 1
9. 18
Multiply the sizes: 3 × 6 = 18. Same signs give positive, different signs give negative. Answer: 18
10. 35
Subtracting (-9) is the same as adding 9. 26 + 9 = 35
11. -72
Multiply the sizes: 8 × 9 = 72. Same signs give positive, different signs give negative. Answer: -72
12. 152
Multiply the sizes: 8 × 19 = 152. Same signs give positive, different signs give negative. Answer: 152
Worked examples
-8 − (-6) = ?
- Subtracting (-6) is the same as adding 6.
- -8 + 6 = -2
- Answer: -2
-19 × (-12) = ?
- Multiply the sizes: 19 × 12 = 228.
- Same signs give positive, different signs give negative.
- Answer: 228
- Answer: 228
17 + 13 = ?
- Start at 17 on a number line.
- Move 13 right.
- You land on 30.
- Answer: 30
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 worksheet really free?
- Yes. Every worksheets 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 worksheet 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?
- Move on to Working with Adding Integers, Adding Integers in Context, Negative Numbers, Integer Number Line, which build directly on this idea.
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