Free Grade 3 Working with Multiplying Integers Lesson Plans
Free Grade 3 lesson plans for Working with Multiplying 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 working with multiplying integers
Explain working with multiplying integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate working with multiplying integers
Calculate working with multiplying integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare working with multiplying integers
Compare working with multiplying integers accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify working with multiplying integers
Justify working with multiplying 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 Working with Multiplying 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]
- 2.4 + (-3) = ?[1]
- 3.7 + 4 = ?[1]
- 4.-3 + (-2) = ?[1]
- 5.13 − (-16) = ?[2]
- 6.-15 + 4 = ?[2]
- 7.-18 × 18 = ?[2]
- 8.-6 − (-2) = ?[2]
- 9.-27 − (-2) = ?[3]
- 10.-5 − 22 = ?[3]
- 11.-6 + 23 = ?[3]
- 12.12 + (-28) = ?[3]
Show answers and working
1. 14
Subtracting (-7) is the same as adding 7. 7 + 7 = 14
2. 1
Start at 4 on a number line. Move 3 left. You land on 1.
3. 11
Start at 7 on a number line. Move 4 right. You land on 11.
4. -5
Start at -3 on a number line. Move 2 left. You land on -5.
5. 29
Subtracting (-16) is the same as adding 16. 13 + 16 = 29
6. -11
Start at -15 on a number line. Move 4 right. You land on -11.
7. -324
Multiply the sizes: 18 × 18 = 324. Same signs give positive, different signs give negative. Answer: -324
8. -4
Subtracting (-2) is the same as adding 2. -6 + 2 = -4
9. -25
Subtracting (-2) is the same as adding 2. -27 + 2 = -25
10. -27
Subtracting 22 is the same as adding -22. -5 + (-22) = -27
11. 17
Start at -6 on a number line. Move 23 right. You land on 17.
12. -16
Start at 12 on a number line. Move 28 left. You land on -16.
Worked examples
-4 − 6 = ?
- Subtracting 6 is the same as adding -6.
- -4 + (-6) = -10
- Answer: -10
5 × (-3) = ?
- Multiply the sizes: 5 × 3 = 15.
- Same signs give positive, different signs give negative.
- Answer: -15
- Answer: -15
29 + (-8) = ?
- Start at 29 on a number line.
- Move 8 left.
- You land on 21.
- Answer: 21
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 Multiplying Integers 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 Introducing Multiplying Integers, Subtracting 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 Working with Multiplying Integers?
- Move on to Multiplying Integers in Context, Negative Numbers, Integer Number Line, Adding Integers, which build directly on this idea.
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