UKUK USUSIndiaIndia

Every Question Helps You Learn

Parents Students Tutors Teachers Knowledge Bank Survey Results
Join Us
UKUK USUSIndiaIndia
Join Us
KS1 (Age 5-7)KS2 (Age 7-11)11 Plus (Age 7-11)KS3 (Age 11-14)GCSE (Age 14-17)PSHEESLSpanishSpecialistGames
  1. Home
  2. KS3
  3. Maths
  4. Level 3-4 Algebra - Expressions
Streak
Leading Streak Today 49
Your Streak Today 0
Streak
Leading Streak Today
49
Your Streak Today
0
Level 3-4 Algebra - Expressions
If I have x pencils and you have twice as many, how many pencils have you got?

Level 3-4 Algebra - Expressions

In your KS3 Maths lessons, you've probably encountered expressions. These are super important in algebra and overall in maths.

Algebra is like a secret code using symbols, often letters, to stand in for unknown numbers, called variables. These variables can change, or vary, depending on the situation. When you write down a situation as a maths sentence, it becomes an expression.

Discover the Fun of Learning with Quizzes!

In Algebra, think of an expression as a bunch of symbols showing a number or quantity. It can have numbers, letters, and symbols, and even a single number by itself is an expression. Understanding expressions is crucial in KS3 Maths, especially when dealing with BIDMAS/BODMAS.

Treat it like a puzzle – take your time, read each question carefully, and think through your answers. If you're confident with expressions, test yourself with this quiz!

1.
If I have x rabbits and you have twice as many, how many rabbits have you got?
2x
2 + x
2 - x
x2
You have two times the number that I have got and 2 times x is the same as 2x
2.
Simplify 5a + 7a.
12a
12aa
57a
57aa
Let us suppose that a = 3. (5 x 3) + (7 x 3) = 36. This is the same as saying 12 x 3 (12a) = 36
3.
In an algebraic expression letters are often used to represent what?
Other letters
Only numbers greater than 1
Only numbers less than 1
Values
A letter can be used in place of any number - especially if the number has not yet been worked out
4.
Jane is c years old and her sister Katie is three years younger so how old is Katie?
c3
c + 3
c - 3
c - 3 - 3
If she is younger then her age is less than. 3 less than is the same as minus 3
5.
What is the simplification of 3a + 4b + 6c + 3a - 6c - a - 3b?
4a + 2b - 3c
5a + b
6a - 3b
9a - 2b - c
Be careful to account for all the a's, then all the b's and then all the c's. In this case + 6c and - 6c cancel each other out and therefore they do not appear in the simplification
6.
Peter has x brothers, Paul has y brothers and Graham has z brothers. Between the three boys, how many brothers have they got?
xyz
x + y + z
x + y - z
x - y + z
Don't get baffled by complicated wording - often the answer is easier than you think
7.
Suzie is x years old and she has a sister called Rosie who is four years older. Rosie's mother was 28 when Rosie was born. How old is Rosie's mother now?
7x
x + 28
x - 4
x + 32
If you got the answer wrong then think carefully through each aspect of the question. Rosie's mother was 28 when Rosie was born. 4 years later, Suzie was born. Suzie is now x years old so Rosie's mother's age is now
28 + 4 + x = 32 + x
8.
Simplify 4a + 5b + 6b + 11a
26ab
15a2 + 11b2
15a + 11b
9a + 17b
Here we are adding numbers together, NOT multiplying them together
9.
Which of these is a simplification of 2a x 3a?
5a
6a
23aa
6a2
You must multiply the numbers together AND the letters. Remember a x a = a2
10.
Which of the following is not a mathematical expression?
6
6a x 14
5a - 4b +16c x 8d
Oh my gosh!
The correct answer might well be an English expression but it is NOT a mathematical one!
You can find more about this topic by visiting BBC Bitesize - Expressions and formulae

Author:  Frank Evans
Maths Play this quiz again

Contact Details

Education Quizzes

Heron's Way, Wragg Marsh
Spalding
Lincolnshire
PE12 6HH
England

Email

admin@educationquizzes.com

Customer Service

Home Page Students Teachers and Schools Tutors Education Quizzes - Join Us

Here To Help

Contact Us Quiz List and Sitemap Frequently Asked Questions Links and Resources Education Matters Blog

About Us

Our Team Testimonials Terms and Conditions Privacy Policy Parent Reviews

© Copyright 2016-2024 - Education Quizzes
Work Innovate Ltd - Design | Development | Marketing

We use cookies to enhance your experience on our website.

To comply with the e-Privacy directive, we need your consent - I agree - No thanks - Learn more