Free Grade 3 What is Working with Introducing Range Common Errors Flashcards
Free Grade 3 flashcards for What is Working with Introducing Range Common Errors: 12 real questions with a full answer key and worked solutions. The mean is the total divided by how many values. The median is the middle value in order. The mode is the most common. The range is largest minus smallest.
Free
Core
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify what is working with introducing range common errors
Identify what is working with introducing range common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain what is working with introducing range common errors
Explain what is working with introducing range common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate what is working with introducing range common errors
Calculate what is working with introducing range common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare what is working with introducing range common errors
Compare what is working with introducing range common errors 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 What is Working with Introducing Range Common Errors works
The mean is the total divided by how many values. The median is the middle value in order. The mode is the most common. The range is largest minus smallest.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.For the data 2, 4, 7, 9, 16, find the mean, median, mode and range.[1]
- 2.For the data 1, 6, 7, 7, 19, find the mean, median, mode and range.[1]
- 3.For the data 6, 10, 14, 16, 17, find the mean, median, mode and range.[1]
- 4.For the data 1, 3, 9, 12, 15, find the mean, median, mode and range.[1]
- 5.For the data 1, 18, 20, 20, 23, 26, 33, find the mean, median, mode and range.[2]
- 6.For the data 10, 23, 24, 26, 30, 37, 39, find the mean, median, mode and range.[2]
- 7.For the data 4, 6, 14, 33, 34, 35, 40, find the mean, median, mode and range.[2]
- 8.For the data 2, 14, 25, 27, 30, 32, 33, find the mean, median, mode and range.[2]
- 9.For the data 10, 11, 13, 16, 41, 51, 54, 57, 57, find the mean, median, mode and range.[3]
- 10.For the data 3, 6, 9, 9, 18, 31, 39, 40, 53, find the mean, median, mode and range.[3]
- 11.For the data 10, 17, 19, 27, 33, 42, 50, 54, 55, find the mean, median, mode and range.[3]
- 12.For the data 10, 12, 13, 20, 24, 28, 31, 52, 57, find the mean, median, mode and range.[3]
Show answers and working
1. Mean 7.6, median 7, mode none, range 14
Mean = 38 ÷ 5 = 7.6. Median = middle value in order = 7. Mode = most common = no repeated value. Range = 16 − 2 = 14.
2. Mean 8, median 7, mode 7, range 18
Mean = 40 ÷ 5 = 8. Median = middle value in order = 7. Mode = most common = 7. Range = 19 − 1 = 18.
3. Mean 12.6, median 14, mode none, range 11
Mean = 63 ÷ 5 = 12.6. Median = middle value in order = 14. Mode = most common = no repeated value. Range = 17 − 6 = 11.
4. Mean 8, median 9, mode none, range 14
Mean = 40 ÷ 5 = 8. Median = middle value in order = 9. Mode = most common = no repeated value. Range = 15 − 1 = 14.
5. Mean 20.14, median 20, mode 20, range 32
Mean = 141 ÷ 7 = 20.14. Median = middle value in order = 20. Mode = most common = 20. Range = 33 − 1 = 32.
6. Mean 27, median 26, mode none, range 29
Mean = 189 ÷ 7 = 27. Median = middle value in order = 26. Mode = most common = no repeated value. Range = 39 − 10 = 29.
7. Mean 23.71, median 33, mode none, range 36
Mean = 166 ÷ 7 = 23.71. Median = middle value in order = 33. Mode = most common = no repeated value. Range = 40 − 4 = 36.
8. Mean 23.29, median 27, mode none, range 31
Mean = 163 ÷ 7 = 23.29. Median = middle value in order = 27. Mode = most common = no repeated value. Range = 33 − 2 = 31.
9. Mean 34.44, median 41, mode 57, range 47
Mean = 310 ÷ 9 = 34.44. Median = middle value in order = 41. Mode = most common = 57. Range = 57 − 10 = 47.
10. Mean 23.11, median 18, mode 9, range 50
Mean = 208 ÷ 9 = 23.11. Median = middle value in order = 18. Mode = most common = 9. Range = 53 − 3 = 50.
11. Mean 34.11, median 33, mode none, range 45
Mean = 307 ÷ 9 = 34.11. Median = middle value in order = 33. Mode = most common = no repeated value. Range = 55 − 10 = 45.
12. Mean 27.44, median 24, mode none, range 47
Mean = 247 ÷ 9 = 27.44. Median = middle value in order = 24. Mode = most common = no repeated value. Range = 57 − 10 = 47.
Worked examples
For the data 1, 6, 7, 7, 13, find the mean, median, mode and range.
- Mean = 34 ÷ 5 = 6.8.
- Median = middle value in order = 7.
- Mode = most common = 7.
- Range = 13 − 1 = 12.
- Answer: Mean 6.8, median 7, mode 7, range 12
For the data 1, 1, 4, 11, 22, 37, 38, find the mean, median, mode and range.
- Mean = 114 ÷ 7 = 16.29.
- Median = middle value in order = 11.
- Mode = most common = 1.
- Range = 38 − 1 = 37.
- Answer: Mean 16.29, median 11, mode 1, range 37
For the data 5, 15, 19, 26, 42, 44, 50, 51, 55, find the mean, median, mode and range.
- Mean = 307 ÷ 9 = 34.11.
- Median = middle value in order = 42.
- Mode = most common = no repeated value.
- Range = 55 − 5 = 50.
- Answer: Mean 34.11, median 42, mode none, range 50
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Finds the median without ordering the data.
Correction: Always put the numbers in order first.
Gives the range as the two end numbers.
Correction: Range is one number: largest minus smallest.
Teacher tips
- · Collect real class data (heights, shoe sizes).
Parent tips
- · Work out your average bedtime over a week.
Real-life applications
- · Sports averages, typical prices, test scores.
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- Start with Rules and Methods in Introducing Range Common Errors. Each one has its own free lesson, worksheet and quiz.
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