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Introduction to Algebra Expressions

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Introduction to Algebra Expressions worksheet preview

Introduction to Algebra and Expressions

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📚 Part 1: Multiple Choice

WALT: Understand what algebra is and identify variables in expressions.

Success criteria: I can spot variables and constants and translate simple phrases into expressions.

1. Which of these is an algebraic expression?

3 + x

5 = y

7

x = 3

2. In the expression 5y - 2, which symbol is the variable?

5

y

2

- (minus sign)

3. Check all that are constants:

4

x

0.5

7z

4. Translate the phrase into an expression: "Twice a number plus 6"

2n + 6

n + 2 × 6

2 + n6

2(n + 6)

✏️ Part 2: Short Answers & Matching

5. In one sentence, what is algebra?
6. Write an algebraic expression for: "A number multiplied by 4, then add 2."
7. Identify the variables and the constants in the expression: 3x + 5y - 7
8. Match each expression (left) with its word description (right). Draw a line between matching pairs.
A. x + 5
B. 2a
C. b - 4
D. 3 + y
1. Three more than y
2. Twice a number a
3. A number decreased by 4
4. A number plus five

🏅 Extension Challenge

Use x, y or z and numbers from 1–10 to create three different algebraic expressions. Try to use at least one with two variables.

9. Expression 1:
10. Expression 2:
11. Expression 3 (use two variables):

Exit ticket: Write the algebraic expression for "A number decreased by 4" on the back of your card and hand it to the teacher.

Differentiation / Dyslexia-friendly tips: Use a coloured overlay if helpful, read each question aloud, and write answers in short clear phrases. Advanced students may add brackets (e.g., 3(x + 2)).

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