Ages 12–18
BrainteenAges 13–18MathsWorksheet
Substitution (With negatives) · Practice set 2
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Work out the value of each expression.
Curriculum links
- Common Core 6.EE.A.2.C: Evaluate expressions and formulas for given values of their variables, using the order of operations.
- Common Core 7.NS.A.3: Solve real-world and mathematical problems with the four operations on rational numbers.
- Common Core HSA-SSE.A.1: Interpret expressions that represent a quantity in terms of its context (terms, factors, coefficients).
- England NC KS3.MA.ALG.2: Substitute numbers into formulae and expressions, including scientific formulae.
- BNCC EF08MA06: Evaluate algebraic expressions for given values using the properties of operations.
- Programmes FR C4.MA.AL.1: Evaluate a literal expression by substituting values for the letters.
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About this activity
What your child practises
Skills: Substituting into expressions (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
- Ask for the working, not just the answer – in exams, clear method earns marks even when the answer slips.
- Play it on screen for instant feedback, then print a fresh version as a timed, calculator-free check.
- Encourage teens to set their own target (say 12 out of 15) and track it over a few attempts.
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 (With negatives) – pitched at ages 13–18
- Answer key
- Yes – print it with the sheet or on its own