Free Grade 3 Rules and Methods in Introducing Range Essentials Flashcards
Free Grade 3 flashcards for Rules and Methods in Introducing Range Essentials: 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 rules and methods in introducing range essentials
Identify rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain rules and methods in introducing range essentials
Explain rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate rules and methods in introducing range essentials
Calculate rules and methods in introducing range essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare rules and methods in introducing range essentials
Compare rules and methods in introducing range essentials 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 Rules and Methods in Introducing Range Essentials 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, 7, 8, 10, 12, find the mean, median, mode and range.[1]
- 2.For the data 2, 6, 11, 16, 19, find the mean, median, mode and range.[1]
- 3.For the data 4, 9, 11, 11, 12, find the mean, median, mode and range.[1]
- 4.For the data 2, 8, 9, 14, 19, find the mean, median, mode and range.[1]
- 5.For the data 12, 13, 16, 22, 31, 33, 34, find the mean, median, mode and range.[2]
- 6.For the data 2, 3, 9, 24, 24, 25, 39, find the mean, median, mode and range.[2]
- 7.For the data 1, 2, 5, 7, 18, 28, 32, find the mean, median, mode and range.[2]
- 8.For the data 1, 5, 5, 11, 17, 29, 33, find the mean, median, mode and range.[2]
- 9.For the data 3, 12, 13, 36, 38, 40, 44, 49, 52, find the mean, median, mode and range.[3]
- 10.For the data 9, 11, 15, 23, 29, 29, 32, 39, 58, find the mean, median, mode and range.[3]
- 11.For the data 7, 15, 28, 34, 39, 43, 44, 55, 55, find the mean, median, mode and range.[3]
- 12.For the data 2, 2, 13, 18, 30, 33, 37, 46, 48, find the mean, median, mode and range.[3]
Show answers and working
1. Mean 7.8, median 8, mode none, range 10
Mean = 39 ÷ 5 = 7.8. Median = middle value in order = 8. Mode = most common = no repeated value. Range = 12 − 2 = 10.
2. Mean 10.8, median 11, mode none, range 17
Mean = 54 ÷ 5 = 10.8. Median = middle value in order = 11. Mode = most common = no repeated value. Range = 19 − 2 = 17.
3. Mean 9.4, median 11, mode 11, range 8
Mean = 47 ÷ 5 = 9.4. Median = middle value in order = 11. Mode = most common = 11. Range = 12 − 4 = 8.
4. Mean 10.4, median 9, mode none, range 17
Mean = 52 ÷ 5 = 10.4. Median = middle value in order = 9. Mode = most common = no repeated value. Range = 19 − 2 = 17.
5. Mean 23, median 22, mode none, range 22
Mean = 161 ÷ 7 = 23. Median = middle value in order = 22. Mode = most common = no repeated value. Range = 34 − 12 = 22.
6. Mean 18, median 24, mode 24, range 37
Mean = 126 ÷ 7 = 18. Median = middle value in order = 24. Mode = most common = 24. Range = 39 − 2 = 37.
7. Mean 13.29, median 7, mode none, range 31
Mean = 93 ÷ 7 = 13.29. Median = middle value in order = 7. Mode = most common = no repeated value. Range = 32 − 1 = 31.
8. Mean 14.43, median 11, mode 5, range 32
Mean = 101 ÷ 7 = 14.43. Median = middle value in order = 11. Mode = most common = 5. Range = 33 − 1 = 32.
9. Mean 31.89, median 38, mode none, range 49
Mean = 287 ÷ 9 = 31.89. Median = middle value in order = 38. Mode = most common = no repeated value. Range = 52 − 3 = 49.
10. Mean 27.22, median 29, mode 29, range 49
Mean = 245 ÷ 9 = 27.22. Median = middle value in order = 29. Mode = most common = 29. Range = 58 − 9 = 49.
11. Mean 35.56, median 39, mode 55, range 48
Mean = 320 ÷ 9 = 35.56. Median = middle value in order = 39. Mode = most common = 55. Range = 55 − 7 = 48.
12. Mean 25.44, median 30, mode 2, range 46
Mean = 229 ÷ 9 = 25.44. Median = middle value in order = 30. Mode = most common = 2. Range = 48 − 2 = 46.
Worked examples
For the data 2, 7, 8, 15, 16, find the mean, median, mode and range.
- Mean = 48 ÷ 5 = 9.6.
- Median = middle value in order = 8.
- Mode = most common = no repeated value.
- Range = 16 − 2 = 14.
- Answer: Mean 9.6, median 8, mode none, range 14
For the data 16, 18, 24, 25, 25, 37, 38, find the mean, median, mode and range.
- Mean = 183 ÷ 7 = 26.14.
- Median = middle value in order = 25.
- Mode = most common = 25.
- Range = 38 − 16 = 22.
- Answer: Mean 26.14, median 25, mode 25, range 22
For the data 8, 10, 12, 22, 23, 38, 49, 55, 59, find the mean, median, mode and range.
- Mean = 276 ÷ 9 = 30.67.
- Median = middle value in order = 23.
- Mode = most common = no repeated value.
- Range = 59 − 8 = 51.
- Answer: Mean 30.67, median 23, mode none, range 51
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 Key Vocabulary of Introducing Range Essentials, Introduction to Introducing Range Essentials, Mode. Each one has its own free lesson, worksheet and quiz.
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- Move on to Working with Introducing Range Essentials, Introducing Range Essentials in Examinations, Introducing Range Techniques, Introducing Range Word Problems, which build directly on this idea.
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