Free Grade 3 Introducing Sampling Word Problems Flashcards
Free Grade 3 flashcards for Introducing Sampling Word Problems: 12 real questions with a full answer key and worked solutions. Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
Free
Higher
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing sampling word problems
Explain introducing sampling word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing sampling word problems
Calculate introducing sampling word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing sampling word problems
Compare introducing sampling word problems accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing sampling word problems
Justify introducing sampling word problems 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 Sampling Word Problems works
Charts show data visually. In a pie chart, each category's angle is its fraction of the total multiplied by 360°.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.In a survey: Red 5, Blue 15, Green 15, Yellow 8. In a pie chart, what angle does Red get?[1]
- 2.In a survey: Red 12, Blue 14, Green 12, Yellow 3. In a pie chart, what angle does Yellow get?[1]
- 3.In a survey: Red 9, Blue 2, Green 14, Yellow 10. In a pie chart, what angle does Red get?[1]
- 4.In a survey: Red 8, Blue 9, Green 6, Yellow 2. In a pie chart, what angle does Blue get?[1]
- 5.In a survey: Red 7, Blue 8, Green 10, Yellow 5. In a pie chart, what angle does Yellow get?[2]
- 6.In a survey: Red 14, Blue 4, Green 7, Yellow 10. In a pie chart, what angle does Yellow get?[2]
- 7.In a survey: Red 8, Blue 14, Green 14, Yellow 3. In a pie chart, what angle does Blue get?[2]
- 8.In a survey: Red 4, Blue 7, Green 15, Yellow 12. In a pie chart, what angle does Green get?[2]
- 9.In a survey: Red 6, Blue 2, Green 10, Yellow 13. In a pie chart, what angle does Blue get?[3]
- 10.In a survey: Red 9, Blue 10, Green 6, Yellow 14. In a pie chart, what angle does Yellow get?[3]
- 11.In a survey: Red 4, Blue 10, Green 11, Yellow 3. In a pie chart, what angle does Green get?[3]
- 12.In a survey: Red 12, Blue 8, Green 13, Yellow 13. In a pie chart, what angle does Red get?[3]
Show answers and working
1. 41.9°
Total = 43. Red fraction = 5/43. 5/43 × 360° = 41.9°.
2. 26.3°
Total = 41. Yellow fraction = 3/41. 3/41 × 360° = 26.3°.
3. 92.6°
Total = 35. Red fraction = 9/35. 9/35 × 360° = 92.6°.
4. 129.6°
Total = 25. Blue fraction = 9/25. 9/25 × 360° = 129.6°.
5. 60°
Total = 30. Yellow fraction = 5/30. 5/30 × 360° = 60°.
6. 102.9°
Total = 35. Yellow fraction = 10/35. 10/35 × 360° = 102.9°.
7. 129.2°
Total = 39. Blue fraction = 14/39. 14/39 × 360° = 129.2°.
8. 142.1°
Total = 38. Green fraction = 15/38. 15/38 × 360° = 142.1°.
9. 23.2°
Total = 31. Blue fraction = 2/31. 2/31 × 360° = 23.2°.
10. 129.2°
Total = 39. Yellow fraction = 14/39. 14/39 × 360° = 129.2°.
11. 141.4°
Total = 28. Green fraction = 11/28. 11/28 × 360° = 141.4°.
12. 93.9°
Total = 46. Red fraction = 12/46. 12/46 × 360° = 93.9°.
Worked examples
In a survey: Red 11, Blue 12, Green 14, Yellow 11. In a pie chart, what angle does Green get?
- Total = 48.
- Green fraction = 14/48.
- 14/48 × 360° = 105°.
- Answer: 105°
In a survey: Red 14, Blue 13, Green 9, Yellow 5. In a pie chart, what angle does Green get?
- Total = 41.
- Green fraction = 9/41.
- 9/41 × 360° = 79°.
- Answer: 79°
In a survey: Red 15, Blue 15, Green 8, Yellow 10. In a pie chart, what angle does Red get?
- Total = 48.
- Red fraction = 15/48.
- 15/48 × 360° = 112.5°.
- Answer: 112.5°
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Uses 100 instead of 360 for pie-chart angles.
Correction: A full circle is 360°.
Forgets to find the total first.
Correction: Add all frequencies before working out fractions.
Teacher tips
- · Have pupils check that all angles add to 360°.
Parent tips
- · Look at charts in the news and ask what they show.
Real-life applications
- · News infographics, survey results.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Introducing Sampling Word Problems
One concept, one ecosystem — all of it free.
Goes deeper
The entities below this one, each with the same complete free resource set.
Sibling concepts
Related concepts
Lateral links, including across subjects.
Next topics
All free formats for this concept
Every kind below is a real page, generated from this entity.
Learn — Meet the idea.
Practice — Build fluency.
Revise — Keep it in memory.
Assess — Prove mastery.
Apply — Use it in context.
Teach — Deliver it to a class.
Frequently asked
- Is this Grade 3 Introducing Sampling Word Problems flashcards really free?
- Yes. Every flashcards 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 Sampling Techniques, Introducing Sampling Essentials, Data Presentation. Each one has its own free lesson, worksheet and quiz.
- How is the flashcards 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 Sampling Word Problems?
- Move on to Introducing Sampling Common Errors, Working with Sampling, Sampling in Context, which build directly on this idea.
Related resources
Stuck on Introducing Sampling Word Problems? The AI Tutor already knows this page, its prerequisites and its common mistakes.
Open the free AI Tutor