Chapter 1 · Class 6 ICSE · Free Worksheet PDF

Number System Sums for Class 6 — Free ICSE Worksheet PDF with Answers

Q: Where can I download free number system sums for Class 6?

You can download a free Number System PDF worksheet for Class 6 ICSE right here on SparkEd. The worksheet includes 30 practice questions (place value, Indian and International number systems, expanded form, comparing large numbers, and estimation) at easy, medium, and hard levels with a complete answer key.

Q: How many number system questions are in this Class 6 worksheet?

This SparkEd worksheet for Number System Class 6 contains 30 questions — 10 easy, 10 medium, and 10 hard. The questions cover place value, Indian and International number systems, expanded form, comparing large numbers, and estimation. A fresh set is generated daily so students never repeat the same sheet.

Q: Does the Number System worksheet for Class 6 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.

Q: Is this number system worksheet aligned to ICSE syllabus?

Yes. This worksheet is specifically designed for Class 6 ICSE students and aligned to the 2025-26 ICSE syllabus. All questions follow the ICSE exam pattern and difficulty level.

Q: Can I print this Number System 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.

Q: 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.

Download a free printable number system worksheet for Class 6 ICSE with 30 practice questions covering place value, Indian and International number systems, expanded form, comparing large numbers, and estimation. Includes complete answer key. ICSE-aligned for the 2025-26 syllabus.

Last updated: 5 May 2026

Download Full PDF Worksheet

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

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Sample Number System Sums for Class 6 — Practice Questions

Here are 8 sample number system sums from this Class 6 ICSE worksheet. Download the full PDF for all 30 questions with answers.

Q1.

Which of the following is the smallest natural number?

0

1

2

-1

Difficulty: Easy

Q2.

Which of the following is NOT a whole number?

0

5

-3

12

Difficulty: Easy

Q3.

What is the place value of 7 in the number 4,73,562?

7,000

70,000

7

7,00,000

Difficulty: Easy

Q4.

Write the number 35,672 in expanded form.

30,000 + 5,000 + 600 + 70 + 2

3,000 + 5,000 + 600 + 70 + 2

30,000 + 500 + 600 + 70 + 2

30,000 + 5,000 + 60 + 70 + 2

Difficulty: Easy

Q5.

What is the successor of 9,999?

10,000

9,998

10,001

99,999

Difficulty: Easy

Q6.

What is the predecessor of 5,000?

5,001

4,999

4,000

4,900

Difficulty: Easy

Q7.

How many 4-digit numbers are there in all?

8,999

9,000

9,999

1,000

Difficulty: Easy

Q8.

In the Indian system, how is 1,23,45,678 read?

One crore twenty-three lakh forty-five thousand six hundred seventy-eight

Twelve million three hundred forty-five thousand six hundred seventy-eight

One lakh twenty-three thousand four hundred fifty-six

Twelve crore thirty-four lakh fifty-six thousand seven hundred eighty

Difficulty: Easy

Answer Key — Sample Questions+

Q1:1

Q2:−3

Q3:70,000

Q4:30,000 + 5,000 + 600 + 70 + 2

Q5:10,000

Q6:4,999

Q7:9,000

Q8:One crore twenty-three lakh forty-five thousand six hundred seventy-eight

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

About This Worksheet

Topic	Number System
Board	ICSE
Class	6
Total Questions	30 (10 Easy + 10 Medium + 10 Hard)
Answer Key	Included
Price	Free

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Frequently Asked Questions

Where can I download free number system sums for Class 6?

You can download a free Number System PDF worksheet for Class 6 ICSE right here on SparkEd. The worksheet includes 30 practice questions (place value, Indian and International number systems, expanded form, comparing large numbers, and estimation) at easy, medium, and hard levels with a complete answer key.

How many number system questions are in this Class 6 worksheet?

This SparkEd worksheet for Number System Class 6 contains 30 questions — 10 easy, 10 medium, and 10 hard. The questions cover place value, Indian and International number systems, expanded form, comparing large numbers, and estimation. A fresh set is generated daily so students never repeat the same sheet.

Does the Number System worksheet for Class 6 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 number system worksheet aligned to ICSE syllabus?

Yes. This worksheet is specifically designed for Class 6 ICSE students and aligned to the 2025-26 ICSE syllabus. All questions follow the ICSE exam pattern and difficulty level.

Can I print this Number System 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.