Test of Divisibility — Chapter Summary
ICSE · Class 4 · Mathematics
Summary of Test of Divisibility for ICSE Class 4 Mathematics. Part of the ICSE Class 4 Mathematics syllabus. In this chapter, we learn how to quickly find.
Interactive on Super Tutor
Studying Test of Divisibility? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for chapter summary and more.
Free trial, no card needed.
Overview
In this chapter, we learn how to quickly find out if a number can be divided evenly by another number without actually doing the division. These shortcuts are called 'divisibility rules'. They help us solve math problems faster and with more confidence.
Key Concepts
A number is divisible by 2
A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8). For example, 48 ends in 8, so it is divisible by 2.
Add all the digits of
Add all the digits of the number. If the sum is divisible by 3, then the number is divisible by 3. For example, 243 → 2+4+3=9, and 9÷3=3, so 243 is di
A number is divisible by 5
A number is divisible by 5 if it ends in 0 or 5. For example, 775 ends in 5, so it is divisible by 5.
A number is divisible by 6
A number is divisible by 6 only if it is divisible by both 2 and 3. For example, 84 is even (divisible by 2) and 8+4=12 (divisible by 3), so 84 is div
Add all the digits of
Add all the digits of the number. If the sum is divisible by 9, then the number is divisible by 9. For example, 4158 → 4+1+5+8=18, and 18÷9=2, so 4158
Learning Objectives
- Understand the rules for divisibility by 2, 3, 5, 6, 9, and 10
- Apply divisibility rules to large numbers
- Check if a number is divisible by another using simple digit checks
- Use divisibility rules to solve real-life problems
Frequently Asked Questions
What are the important topics in Test of Divisibility for ICSE Class 4 Mathematics?
How should I revise Test of Divisibility for Class 4 exams?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Test of Divisibility
For serious students
Get the full Test of Divisibility chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 4 Mathematics. Free to start, no card needed.