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CBSE Class 4 Mathematics★ 4-5 marks through school tests, activities, notebook work, and competency questions in CBSE Class 4 Mathematics (Maths Mela)

Equal Groups

A CBSE Class 4 Mathematics (Maths Mela) chapter on multiplication and division through equal groups. Children use repeated addition, arrays, skip counting, doubling, and tables, and see how multiplication and division are linked. These notes give core ideas, worked examples, an activity, common mistakes, a practice set with answers, and quick revision.

⏱ 16 min readEasy difficulty✓ Free · NCERT-aligned

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By the end of this chapter you'll be able to…

1Understand multiplication as repeated addition of equal groups
2Use arrays, skip counting, and doubling to multiply
3Divide a total into equal groups
4See how multiplication and division are linked
5Solve simple multiplication and division word problems

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Why this chapter matters

Equal Groups builds multiplication and division. Children use repeated addition, arrays, skip counting, doubling, and tables, and learn that multiplication and division are inverse operations - core skills for all later arithmetic.

Before you start — revise these

A 5-minute refresher here will save you 30 minutes of confusion below.

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Raksha Bandhan (Class 3 multiplication/division)

Knowing multiplication as repeated addition from Class 3.

Equal Groups — Class 4 Mathematics (CBSE)

From the current NCERT Maths Mela Grade 4 book, Chapter 9. Equal groups are the key to multiplication and division.

1. Why this chapter matters

When we have many equal groups, multiplication counts them quickly, and division shares a total into equal groups. These are used in shopping, packing, and sharing every single day.

2. Core ideas

Idea 1 — Multiplication is repeated addition of equal groups

3 groups of 4 = 4 + 4 + 4 = 12, written 3 × 4 = 12.

Method 2 — Arrays, skip counting, and doubling

An array is rows × columns (3 rows of 4 = 12). Skip count (4, 8, 12) or double (double 6 = 12) to multiply fast.

Skill 3 — Division splits into equal groups

12 ÷ 4 = 3 (12 shared into groups of 4 makes 3 groups). Multiplication and division are linked: 3 × 4 = 12, so 12 ÷ 4 = 3.

3. Worked examples

Example 1: Write 5 + 5 + 5 as a multiplication.

5 + 5 + 5 = 3 × 5 = 15.

Example 2: An array has 4 rows of 6. How many in all?

4 × 6 = 24.

24 ÷ 6 = 4 pencils each (because 6 × 4 = 24).

4. Activity corner

Make an array of buttons (for example, 3 rows of 5). Then share a group equally among your friends. Write:

Your array and its multiplication fact
The division fact for sharing
The maths idea (equal groups link × and ÷)

5. Common mistakes

Mistake: Making groups that are not equal. Fix: Multiplication and division need equal groups.
Mistake: Writing 3 × 4 as 3 + 4. Fix: 3 × 4 means 4 + 4 + 4 (three 4s) = 12.
Mistake: Forgetting the link between × and ÷. Fix: If 6 × 4 = 24, then 24 ÷ 6 = 4 and 24 ÷ 4 = 6.

6. How to write better answers

Find the number of groups and the size of each.
Write the multiplication fact (groups × size).
For sharing, write the division fact (total ÷ groups).
Use the link between × and ÷ to check.

7. Practice set

Write 6 + 6 + 6 + 6 as a multiplication.
Find 4 × 7.
An array has 5 rows of 3. How many in all?
Share 20 sweets equally among 5 children.
If 7 × 3 = 21, what is 21 ÷ 7?
Double 9.

8. Answer key

4 × 6 = 24.
5 × 3 = 15.
20 ÷ 5 = 4 each.
21 ÷ 7 = 3.

9. Quick revision

Multiplication is repeated addition of equal groups (3 × 4 = 12).
Use arrays, skip counting, and doubling to multiply.
Division splits a total into equal groups (12 ÷ 4 = 3).
Multiplication and division are linked (6 × 4 = 24, so 24 ÷ 6 = 4).
Groups must be equal.

Key formulas & results

Everything you need to memorise, in one card. Screenshot this for revision.

Core idea

Multiplication is repeated addition of equal groups: 3 x 4 = 4 + 4 + 4 = 12.

Groups must be equal.

Math move

Use arrays (rows x columns), skip counting, and doubling to multiply.

An array of 3 rows of 4 shows 3 x 4 = 12.

Exam habit

Division splits into equal groups; multiplication and division are linked (6 x 4 = 24, so 24 / 6 = 4).

Use one fact to check the other.

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Common mistakes & fixes

These are the exact errors that cost students marks in board exams. Read them once, save yourself the trouble.

WATCH OUT

✗ Making groups that are not equal

✓ Multiplication and division need equal groups.

WATCH OUT

✗ Writing 3 x 4 as 3 + 4

✓ 3 x 4 means 4 + 4 + 4 (three 4s), which is 12.

WATCH OUT

✗ Forgetting the link between multiplication and division

✓ If 6 x 4 = 24, then 24 / 6 = 4 and 24 / 4 = 6.

NCERT exercises (with solutions)

Every NCERT exercise from this chapter — what it covers and how many questions to expect.

Read, observe, and discuss

Make arrays and skip count using the pictures in the textbook before writing answers.

Questions

Notebook practice

Writing multiplication from equal groups, arrays, doubling, and equal-sharing division.

Questions

Project or activity

Make an array of buttons and write its multiplication and division facts.

Questions

Practice problems

Try each one yourself before tapping "Show solution". Active recall > rereading.

Q1EASY· Multiply

Write 6 + 6 + 6 + 6 as a multiplication.

▶ Show solution

4 x 6 = 24.

Q2EASY· Multiply

Find 4 x 7.

▶ Show solution

28.

Q3MEDIUM· Array

An array has 5 rows of 3. How many in all?

▶ Show solution

5 x 3 = 15.

Q4MEDIUM· Divide

Share 20 sweets equally among 5 children.

▶ Show solution

20 / 5 = 4 sweets each.

Q5MEDIUM· Link

If 7 x 3 = 21, what is 21 / 7?

▶ Show solution

3.

Q6HARD· Apply

There are 6 boxes with 8 crayons each. How many crayons in all, and how many if shared equally among 4 children?

▶ Show solution

6 x 8 = 48 crayons; 48 / 4 = 12 crayons each.

5-minute revision

The whole chapter, distilled. Read this the night before the exam.

•Equal Groups is Chapter 9 of the Class 4 Maths Mela textbook.
•Multiplication is repeated addition of equal groups (3 x 4 = 12).
•Use arrays, skip counting, and doubling to multiply.
•Division splits a total into equal groups (12 / 4 = 3).
•Multiplication and division are linked (6 x 4 = 24, so 24 / 6 = 4).
•Groups must be equal.

CBSE marks blueprint

Where the marks come from in this chapter — so you can plan your prep.

Typical chapter weightage: 4-5 marks in school tests, oral checks, notebooks, and activities

Question type	Marks each	Typical count	What it tests
Very Short	1	2-3	Simple multiplication or repeated addition
Short Answer	2	1-2	Arrays, division, or the multiplication-division link
Activity / Project	3	0-1	Making arrays and writing facts

Prep strategy

Turn repeated addition into multiplication
Make arrays to see multiplication facts
Practise skip counting and doubling
Use the link between multiplication and division to check

Where this shows up in the real world

This chapter isn't just an exam topic — it lives in the world around you.

Quick counting

Multiplication counts equal groups fast, like rows of chairs or packs of items.

Sharing fairly

Division shares sweets, toys, or work into equal groups.

Shopping and packing

Buying packs and arranging items uses multiplication and division.

Exam strategy

Battle-tested tips from teachers and toppers for this chapter.

Underline the command word: multiply, share, array, or how many
Write multiplication as groups x size
For sharing, write total / number of groups
Check using the multiplication-division link

Going beyond the textbook

For olympiad aspirants and curious learners — topics that build on this chapter.

Find a number that can be made into both 2 equal groups and 3 equal groups.
Draw two different arrays for the number 12.

Where else this chapter is tested

CBSE board isn't the only one — other exams test this chapter too.

CBSE Class 4 School AssessmentHigh

Class 4 Foundation / Olympiad PracticeMedium

Notebook and Activity EvaluationHigh

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Questions students ask

The real ones — pulled from the Q&A community and tutor sessions.

An array shows objects in equal rows and columns. For example, 3 rows of 4 makes an array for 3 x 4 = 12.

They are inverse operations. If 6 x 4 = 24, then dividing back gives 24 / 6 = 4 and 24 / 4 = 6.

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