Free Grade 3 Bias Flashcards
Free Grade 3 flashcards for Bias: 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
15 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain bias
Explain bias accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate bias
Calculate bias accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare bias
Compare bias accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify bias
Justify bias 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 Bias 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 6, Green 9, Yellow 3. In a pie chart, what angle does Red get?[1]
- 2.In a survey: Red 9, Blue 8, Green 14, Yellow 6. In a pie chart, what angle does Blue get?[1]
- 3.In a survey: Red 14, Blue 2, Green 3, Yellow 2. In a pie chart, what angle does Green get?[1]
- 4.In a survey: Red 15, Blue 7, Green 3, Yellow 10. In a pie chart, what angle does Red get?[1]
- 5.In a survey: Red 5, Blue 10, Green 3, Yellow 4. In a pie chart, what angle does Blue get?[2]
- 6.In a survey: Red 10, Blue 9, Green 4, Yellow 9. In a pie chart, what angle does Yellow get?[2]
- 7.In a survey: Red 14, Blue 2, Green 10, Yellow 2. In a pie chart, what angle does Green get?[2]
- 8.In a survey: Red 5, Blue 11, Green 9, Yellow 12. In a pie chart, what angle does Yellow get?[2]
- 9.In a survey: Red 2, Blue 7, Green 12, Yellow 11. In a pie chart, what angle does Green get?[3]
- 10.In a survey: Red 6, Blue 7, Green 15, Yellow 5. In a pie chart, what angle does Red get?[3]
- 11.In a survey: Red 12, Blue 14, Green 14, Yellow 10. In a pie chart, what angle does Yellow get?[3]
- 12.In a survey: Red 12, Blue 7, Green 9, Yellow 11. In a pie chart, what angle does Red get?[3]
Show answers and working
1. 78.3°
Total = 23. Red fraction = 5/23. 5/23 × 360° = 78.3°.
2. 77.8°
Total = 37. Blue fraction = 8/37. 8/37 × 360° = 77.8°.
3. 51.4°
Total = 21. Green fraction = 3/21. 3/21 × 360° = 51.4°.
4. 154.3°
Total = 35. Red fraction = 15/35. 15/35 × 360° = 154.3°.
5. 163.6°
Total = 22. Blue fraction = 10/22. 10/22 × 360° = 163.6°.
6. 101.3°
Total = 32. Yellow fraction = 9/32. 9/32 × 360° = 101.3°.
7. 128.6°
Total = 28. Green fraction = 10/28. 10/28 × 360° = 128.6°.
8. 116.8°
Total = 37. Yellow fraction = 12/37. 12/37 × 360° = 116.8°.
9. 135°
Total = 32. Green fraction = 12/32. 12/32 × 360° = 135°.
10. 65.5°
Total = 33. Red fraction = 6/33. 6/33 × 360° = 65.5°.
11. 72°
Total = 50. Yellow fraction = 10/50. 10/50 × 360° = 72°.
12. 110.8°
Total = 39. Red fraction = 12/39. 12/39 × 360° = 110.8°.
Worked examples
In a survey: Red 5, Blue 2, Green 8, Yellow 11. In a pie chart, what angle does Yellow get?
- Total = 26.
- Yellow fraction = 11/26.
- 11/26 × 360° = 152.3°.
- Answer: 152.3°
In a survey: Red 15, Blue 5, Green 2, Yellow 8. In a pie chart, what angle does Blue get?
- Total = 30.
- Blue fraction = 5/30.
- 5/30 × 360° = 60°.
- Answer: 60°
In a survey: Red 12, Blue 10, Green 7, Yellow 7. In a pie chart, what angle does Yellow get?
- Total = 36.
- Yellow fraction = 7/36.
- 7/36 × 360° = 70°.
- Answer: 70°
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 Bias
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Frequently asked
- Is this Grade 3 Bias 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 Questionnaires, Sampling, 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 Bias?
- Move on to Averages, Data Presentation, which build directly on this idea.
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