Substitution Quiz Generator
Make a substitution quiz: find the value of expressions like 3a + 4, 2x − 3y and x² − 3x + 1 for given values, including negatives, with the working shown.
- Free
- No sign-up to try
- Works as you type
Preview: 10 questions
1. Find the value of 2t + 18 when t = 7.
2. Find the value of 3b − 16 when b = 4.
3. Find the value of 7t + 16 when t = 5.
4. Find the value of 8t + 9 when t = 2.
5. Find the value of 3b + 15 when b = 5.
6. Find the value of 2x + 2 when x = 8.
7. Find the value of 6y + 18 when y = 6.
8. Find the value of 6t − 1 when t = 4.
9. Find the value of 8a + 13 when a = 3.
10. Find the value of 6b + 4 when b = 5.
Free, no sign-up to try. Your quiz becomes a Room you can edit, publish and share.
How it works
How the Substitution Quiz Generator works
- 1
Pick skills and difficulty
Choose the skills to practise, how hard, and how many questions.
- 2
Try it here
The quiz appears as you choose. Answer a few and check them to see the worked solutions.
- 3
Create the Room
One click makes it a quiz Room with a tutor that gives hints. Publish it and share the link.
Worked example
What it makes
Three questions from a easier quiz on substitution, with the answers and worked solutions the quiz shows after checking.
1. Find the value of 2t + 18 when t = 7.
Options: 27 · 45 · 50 · 32
Answer: 32
2t means 2 × t: 2 × 7 = 14. Then 14 + 18 = 32.
2. Find the value of 3b − 16 when b = 4.
Options: −9 · −36 · −4 · 18
Answer: −4
3b means 3 × b: 3 × 4 = 12. Then 12 − 16 = −4.
3. Find the value of 7t + 16 when t = 5.
Options: 51 · 91 · 147 · 28
Answer: 51
7t means 7 × t: 7 × 5 = 35. Then 35 + 16 = 51.
Who it's for
Who uses it
Maths teachers
Practice that comes before formulae and graphs.
Learners
See why 3a is 15 when a = 5, not 35.
Tutors
Practise squaring negative numbers.
Good to know
What to consider
- Level 1 has one letter, level 2 two letters with negative values, level 3 squares.
- Wrong options include reading 3a as 35 when a = 5, and squaring −3 as −9.
- Levels are difficulty bands, not school grades or a curriculum.
Questions
About the Substitution Quiz Generator
Can I use it for formulae like v = u + at?
Not yet: the questions use short algebraic expressions, not named formulae.
How do I know the answers are right?
The questions are computed, not written by AI: each answer is worked out with exact arithmetic and checked again by a separate solver in our tests. Every question shows its worked solution after the learner checks their answers.
Can my students use it without an account?
Yes. Publish the Room and share the link: anyone with it can take the quiz, check their answers and read the worked solutions. You need a free account to keep and publish the Room.
Make your quiz now
Free, no sign-up to try. It becomes a Room you can edit, publish and share.
Create my quizRelated
Related tools
- Algebra Equations Quiz GeneratorMake a practice quiz on solving linear equations, from one-step to x on both sides, with whole-number answers and the full working shown.
- Expanding Brackets Quiz GeneratorMake an expanding brackets quiz: single brackets, negative multipliers, expanding and simplifying, and double brackets including squares, with every term multiplied out.
- Number Patterns Quiz GeneratorMake an arithmetic sequences quiz: the next term, a later term like the 25th, the nth term rule, and which term a number is, with the working shown.