Chapter 3 · Class 8 CBSE · Free Worksheet PDF

Rational Numbers Sums for Class 8 — Free CBSE Worksheet PDF with Answers

Download a free printable rational numbers worksheet for Class 8 CBSE with 30 practice questions covering rational number operations, properties, representation on number line, and word problems. Includes complete answer key. CBSE-aligned for the 2025-26 syllabus.

Last updated: 5 May 2026

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30 questions (Easy + Medium + Hard) with answer key. Fresh set generated daily.

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Sample Rational Numbers Sums for Class 8 — Practice Questions

Here are 8 sample rational numbers sums from this Class 8 CBSE worksheet. Download the full PDF for all 30 questions with answers.

Q1.Which of the following is a rational number?
A.√2
B.π
C.3/7
D.√5

Difficulty: Easy

Q2.What is the additive identity for rational numbers?
A.1
B.0
C.-1
D.1/2

Difficulty: Easy

Q3.What is the multiplicative identity for rational numbers?
A.0
B.1
C.-1
D.1/2

Difficulty: Easy

Q4.Find the additive inverse of 3/5.
A.5/3
B.-3/5
C.3/5
D.-5/3

Difficulty: Easy

Q5.What is the reciprocal (multiplicative inverse) of 2/7?
A.-2/7
B.7/2
C.-7/2
D.2/7

Difficulty: Easy

Q6.Which property states that a + b = b + a for rational numbers?
A.Associative
B.Commutative
C.Distributive
D.Identity

Difficulty: Easy

Q7.Simplify: 2/3 + 1/3
A.1
B.3/3
C.2/6
D.1/3

Difficulty: Easy

Q8.What is -4/9 + 4/9?
A.8/9
B.-8/9
C.0
D.4/9

Difficulty: Easy

Answer Key — Sample Questions+
Q1:3/7
Q2:0
Q3:1
Q4:-3/5
Q5:7/2
Q6:Commutative
Q7:1
Q8:0

Download the full PDF for all 30 answers with step-by-step solutions.

About This Worksheet

TopicRational Numbers
BoardCBSE
Class8
Total Questions30 (10 Easy + 10 Medium + 10 Hard)
Answer KeyIncluded
PriceFree

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Frequently Asked Questions

Where can I download free rational numbers sums for Class 8?+
You can download a free Rational Numbers PDF worksheet for Class 8 CBSE right here on SparkEd. The worksheet includes 30 practice questions (rational number operations, properties, representation on number line, and word problems) at easy, medium, and hard levels with a complete answer key.
How many rational numbers questions are in this Class 8 worksheet?+
This SparkEd worksheet for Rational Numbers Class 8 contains 30 questions — 10 easy, 10 medium, and 10 hard. The questions cover rational number operations, properties, representation on number line, and word problems. A fresh set is generated daily so students never repeat the same sheet.
Does the Rational Numbers worksheet for Class 8 include answers?+
Yes! Every SparkEd worksheet comes with a complete answer key. Students can self-check their work after completing the sheet. The PDF is free to download and print.
Is this rational numbers worksheet aligned to CBSE syllabus?+
Yes. This worksheet is specifically designed for Class 8 CBSE students and aligned to the 2025-26 CBSE syllabus. All questions follow the CBSE exam pattern and difficulty level.
Can I print this Rational Numbers worksheet?+
Absolutely! The worksheet downloads as an A4-size PDF that is ready to print. It includes the questions, space for working, and a separate answer key — perfect for classroom use or home practice.
How is this worksheet different from NCERT textbook exercises?+
SparkEd worksheets go beyond NCERT exercises by providing 30 questions at 3 progressive difficulty levels. Level 1 (Easy) builds confidence, Level 2 (Medium) tests application, and Level 3 (Hard) prepares for exams. Each worksheet includes word problems and conceptual questions, not just computation.

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SparkEd Maths provides free printable maths worksheets for Class 1-10 across CBSE, ICSE, IB, Olympiad, UP Board, Maharashtra SSC, and TN Board. Every worksheet includes an answer key and is aligned to the 2025-26 syllabus.