Algebra is a big deal in KS3 Maths. But what's the fuss about? Well, in algebra, we swap numbers for letters. Why? To represent numbers we don't know yet.

This quiz is like a launchpad into cool things! Algebra buddies up with BIDMAS (or BODMAS – same thing) and unlocks doors not just in maths, but also in science, geography, engineering, and even medicine. The last 300 years of tech magic? Yep, algebra played a role. Plus, you can sprinkle algebra magic in your everyday life!

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1 .

Sam has x guinea pigs, Paul has y guinea pigs and Joseph has z guinea pigs. We know that Sam and Paul together have the same number of guinea pigs as Joseph. How would we write this?

x + y = z

xyz

2x + y

x - y = z

Sam's (x) + Paul's (y) = Joseph's (x)

2 .

Which of these is an 'expression'?

3x

3x + 4y

3x + 4y^{2}

All of the above

An 'expression' contains one or more terms

3 .

What is the meaning of 4x

4 divided by x

4 minus x

4 plus x

4 times x

Numbers and letters 'joined together' means multiply them together

4 .

There are n boys in a football team. How would we write the number of boys in four football teams?

n x n x n x n

4 + n

n + 4

4n

The correct answer means the same as n + n + n + n

5 .

Which of these is not an 'equation'?

3x = 7

4x^{2} - 6 = 28

4x + 5y + 6z

5x = 6y

An 'equation' always contains an = sign

6 .

Which of these is a single 'term'?

2a

2a + b^{2}

3a + 2b

3a + b + c

2a is a 'term', the other answers contain more than one 'term'

7 .

Thomas has x marbles and Richard has only one third as many. How would we write the number of marbles that Richard has?

x + 3

x - 3

x / 3

3x

To get one third just divide by 3

8 .

Peter has x oranges and Joe has three more oranges than Peter. How would we write the number of oranges that Joe has?

3x

x + 3

x + x + x + x

x3

3 more is the same as + 3

9 .

One of the following would never be written - which one?

x + y

1x + y

3x + 2y

4x - 6y

Instead of writing '1x' you would write 'x' instead

10 .

Jane has y sweets and Lisa has two sweets less than Jane. How would we write the number of sweets that Lisa has?

2y

-2y

y - 2

y - y - y

2 less is the same as minus 2

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