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BrainteenFree
Finding the mean (Bigger numbers and negatives) · Practice set 1
Use the data in each question to work out the answer.
- Ages 13–18
- Maths
- Worksheet
Curriculum links
- Common Core 6.SP.B.5.C: Summarise numerical data with measures of centre (median, mean) and of variability.
- England NC Y6.MA.ST.2: Calculate and interpret the mean as an average.
- England NC KS3.MA.STA.1: Describe and compare distributions using the mean, mode and median and the range.
- BNCC EF07MA35: Understand and calculate the mean of a data set and relate it to the range.
- Programmes FR C4.MA.DO.1: Calculate and interpret the mean, median and range of a data set.
Licence: Crayonbird original
About this activity
What your child practises
Skills: Mean (average) (level 3).
Applying a method step by step and checking the answer – the skills secondary-school maths tests are built on.
What’s included
- 15 questions
- An answer key you can print with the sheet or on its own
- An on-screen version with instant marking and stars
Age and school year
Made for ages 13–18. That’s Grade 8–12 in the US, Year 9–13 in England, JSS 2 – SS 3 in Nigeria and Class 8–12 in India.
How to use it
- Print it at home or school – it fits a standard A4 or US Letter page.
- Print the answer key too, so marking takes seconds.
- Play it on screen: answers are marked instantly and children earn stars.
- Write on it on a tablet or touchscreen with a finger or stylus – no printer needed.
Tips for parents and teachers
- Redo three of the questions a week later: spaced recall is one of the surest ways to make methods stick.
- Check answers after each block of questions so a misconception is caught before it is practised.
- Use a fresh printed copy as a short timed test before an exam to practise working under pressure.
Good to know
- Time needed
- About 20–30 minutes
- You’ll need
- A printer (or a tablet to work on screen), a pencil and an eraser
- Difficulty
- Harder (Bigger numbers and negatives) – pitched at ages 13–18
- Answer key
- Yes – print it with the sheet or on its own
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