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CodeVID-M04-05-ASD-01
Adding & Subtracting Decimals - Assignment
Chapter: Decimals (Tenths and Hundredths)
Topic: Add and Subtract Decimals
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.
To add/subtract decimals, line up the:
  • A.first digits
  • B.decimal points
  • C.last digits
  • D.zeros
2.
$0.5+0.3=$
  • A.$0.8$
  • B.$0.53$
  • C.$8$
  • D.$0.08$
3.
$0.7-0.2=$
  • A.$0.5$
  • B.$0.9$
  • C.$0.05$
  • D.$5$
4.
$0.25+0.25=$
  • A.$0.50$
  • B.$0.4$
  • C.$0.025$
  • D.$5$
5.
You may add a ___ to fill an empty decimal place.
  • A.one
  • B.zero
  • C.comma
  • D.decimal
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
Find $0.4+0.5$.
7.
Find $0.8-0.3$.
8.
Find $0.25+0.25$.
9.
Find $1.0-0.4$.
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
Find $0.45+0.3$.
11.
Find $0.9-0.35$.
12.
Find $1.25+0.5$.
13.
Find $2.0-0.75$.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
One jug holds $1.5$ L and another holds $0.75$ L. Find the total and the difference.
15.
Riya walks $0.85$ km in the morning and $1.4$ km in the evening. How far does she walk in total?

Answer Key

Section A — Multiple Choice Questions
  1. (B) decimal points
  2. (A) $0.8$
  3. (A) $0.5$
  4. (A) $0.50$
  5. (B) zero
Section B — Short Answer (2 marks)
  1. $0.9$.
  2. $0.5$.
  3. $0.5$.
  4. $0.6$.
Section C — Short Answer (3 marks)
  1. $0.75$.
  2. $0.55$.
  3. $1.75$.
  4. $1.25$.
Section D — Long Answer (5 marks)
  1. Total $2.25$ L; difference $0.75$ L.
  2. $2.25$ km.
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