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What is EXPRESSION and EQUATION
Solved examples on how to construct an EXPRESSION
Good practices of writing simplified EXPRESSION
1. Start with variable y, multiply it by two and then add 7.
Which algebraic expression fits this sentence?
a) 2y + 7
b) 7y + 2
c) 2 (y + 7)
2. Write p × 3 + q × 5 without × sign.
a) p3 + q5
b) 3p + q5
c) p3 + 5q
d) 3p + 5q
3. Start with k
- double it
- and then add 20
a) k + 2 + 20
b) 2k + 20
c) 2k – 20
d) 2 (k + 20)
4. Hira is g years old and Kiran is h years old. What is the total of their ages?
a) g + h
b) gh
c) g * h
d) g – h
5. Algebraic Expression 5a + 8 is same as
5 × a + 8 and
8 + 5 × a
a) True
b) False
6. Which of these are equivalent expressions?
i) 3n + 2
ii) 3 × n + 2
iii) 2n + 3
iv) 2 + 3n
v) 2 + 3 × n
a) Only i) and ii)
b) Only ii) , iii) and iv)
c) Only i) , ii) , iv) and v)
7. In a clothes shop, shirts cost $s and trousers cost $t. The algebraic expression for the cost of four shirts and two trousers is:
2s + 4t
a) True
b) False
8. Let cost of gold coin is represented by g.
What is the expression for total cost of six gold coins that are doubled?
a) 6g
b) 12g
c) 3g
d) 8g
9. Write an algebraic expression for:
s more than t
a) s + t
b) t + s
c) Both of the above
10. There are 4 jars. Each jar has b counters. 7 counters are placed beside these jars. How many counters are there altogether.
a) 7b + 4
b) 4b
c) 4b + 7
d) 7 – 4b
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