Ages 13–18
BrainteenAges 12–16PuzzlesPuzzle
Number sequences (Tricky)
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Find the next number in each sequence.
Curriculum links
- Common Core HSF-BF.A.2: Write arithmetic and geometric sequences both recursively and with an explicit formula.
- England NC KS3.MA.ALG.12: Generate terms of a sequence from a term-to-term or position-to-term rule.
- England NC KS3.MA.ALG.13: Recognise arithmetic sequences and find the nth term; recognise geometric and other sequences.
- BNCC EF08MA11: Find the rule of a recursive number sequence and describe how to get the next terms.
Licence: Crayonbird original
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About this activity
What your child practises
Skills: Sequence puzzles (level 2).
Logical reasoning, patience and step-by-step problem solving.
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 12–16. That’s Grade 7–11 in the US, Year 8–12 in England, JSS 1 – SS 2 in Nigeria and Class 7–11 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
- Mark each find with a highlighter or coloured pencil; seeing progress keeps children going.
- Solve the first part together while thinking aloud about your strategy, then hand over the pencil.
- Treat mistakes as information: note what went wrong next to each incorrect answer.
Good to know
- Time needed
- About 5–10 minutes
- You’ll need
- A printer (or a tablet to work on screen), a pencil and an eraser
- Difficulty
- On level (Tricky) – pitched at ages 12–16
- Answer key
- Yes – print it with the sheet or on its own