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Variables and Expressions Worksheet
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Variables and Expressions Worksheet
📚 Part 1: Understanding Variables
1. A variable is a letter that represents an unknown number. Which of these is a variable?
5
x
12
+
2. If n = 7, what is the value of n + 3?
7
3
10
21
3. Fill in the blanks:
If a = 4, then:
a + 6 = ________
a × 3 = ________
15 - a = ________
4. Which expressions are equal to 20 when y = 5? (Tick all that apply)
y + 15
y × 4
y × 5
25 - y
✏️ Part 2: Writing Expressions
5. Write an expression for "a number b increased by 8":
6. Write an expression for "5 times a number m":
7. Sarah has some stickers. She gives away 12 stickers and has s stickers left. Write an expression for how many stickers she started with:
8. A rectangle has a length of (p + 4) cm and a width of 6 cm. Write an expression for its perimeter:
🧮 Part 3: Word Problems
9. Tom buys some books for £3 each. If he buys k books, write an expression for the total cost. Then find the cost if k = 7:
10. A cinema ticket costs £8 for adults and £5 for children. Write an expression for the total cost of a adults and c children tickets:
11. Emma's age is 3 years more than twice her brother's age. If her brother is x years old, write an expression for Emma's age:
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