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Vidaara.orgClass 7 · Mathematics
CodeVID-M07-04-LIK-01
Combining Like Terms - Assignment
Chapter: Algebraic Expressions (Two-step)
Topic: Combining Like Terms
Maximum Marks: 35
Time: 75 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • All questions are compulsory.
  • Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
  • Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions 5 × 1 = 5 marks
1.
$3x+2x=$
  • A.$5x$
  • B.$6x$
  • C.$5x^2$
  • D.$23x$
2.
Like terms have the same variable and same:
  • A.coefficient
  • B.power
  • C.sign
  • D.value
3.
$5a-2a=$
  • A.$3a$
  • B.$7a$
  • C.$3$
  • D.$10a$
4.
$4x$ and $3y$ are:
  • A.like terms
  • B.unlike terms
  • C.equal
  • D.opposites
5.
Only ___ terms can be combined.
  • A.like
  • B.unlike
  • C.positive
  • D.negative
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
Simplify $6x+2x$.
7.
Simplify $9y-4y$.
8.
Simplify $3a+2b+a$.
9.
Are $2x$ and $5x$ like terms?
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
Simplify $4x+3+2x+5$.
11.
Simplify $7a-2a+3b$.
12.
Simplify $2x+3y-x+y$.
13.
Simplify $5m+2n-3m-n$.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
Simplify $4x^2+3x-x^2+5x-2$.
15.
Simplify $6a+2b-3a+4b-a$ and find its value when $a=2,\ b=3$.

Answer Key

Section A — Multiple Choice Questions
  1. (A) $5x$
  2. (B) power
  3. (A) $3a$
  4. (B) unlike terms
  5. (A) like
Section B — Short Answer (2 marks)
  1. $8x$.
  2. $5y$.
  3. $4a+2b$.
  4. Yes.
Section C — Short Answer (3 marks)
  1. $6x+8$.
  2. $5a+3b$.
  3. $x+4y$.
  4. $2m+n$.
Section D — Long Answer (5 marks)
  1. $3x^2+8x-2$.
  2. $2a+6b=22$.
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