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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)

The Transport Museum

A CBSE Class 4 Mathematics (Maths Mela) chapter on multiplication and division, set in a transport museum. Children learn tables up to 20, multiply by 10, 20, 50, and 100, and divide with and without remainders through real travel problems. 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…

1Use multiplication tables up to 20
2Multiply by 10, 20, 50, and 100
3Split numbers to multiply easily
4Divide with and without remainders
5Solve travel and money word problems

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Why this chapter matters

The Transport Museum strengthens multiplication and division through travel problems. Children learn tables to 20, multiply by 10 and 100, split numbers, and divide with and without remainders - skills used in seating, tickets, and money.

Before you start — revise these

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

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Equal Groups

Knowing multiplication and division as equal groups from Chapter 9.

The Transport Museum — Class 4 Mathematics (CBSE)

From the current NCERT Maths Mela Grade 4 book, Chapter 13. Buses, trains, and tickets make multiplication and division come alive.

1. Why this chapter matters

Trips and tickets need multiplication (seats on many buses) and division (sharing passengers into groups). Learning tables to 20, multiplying by 10, 100, and dividing with remainders prepares us for real travel and money problems.

2. Core ideas

Idea 1 — Multiply larger numbers

Learn tables up to 20. To multiply by 10, write a 0 at the end (23 × 10 = 230); by 100, write two 0s (23 × 100 = 2300).

Method 2 — Split numbers to multiply

Break a number to multiply easily: 12 × 4 = (10 × 4) + (2 × 4) = 40 + 8 = 48.

Skill 3 — Division with and without remainders

Sometimes sharing is exact (20 ÷ 5 = 4). Sometimes there is a remainder (17 ÷ 5 = 3 remainder 2).

3. Worked examples

Example 1: 13 × 4 = ?

13 × 4 = (10 × 4) + (3 × 4) = 40 + 12 = 52.

Example 2: A train has 6 coaches with 50 seats each. How many seats?

6 × 50 = 300 seats.

Example 3: 17 children sit 5 to a bench. How many benches, and how many left over?

17 ÷ 5 = 3 benches with 2 children left over (remainder 2).

4. Activity corner

Pretend to run a bus. Decide the seats per bus and how many buses, and find the total seats (multiply). Then share a number of passengers into equal groups and find any remainder. Write:

Your multiplication (buses × seats)
Your division with its remainder
The maths idea (multiply for totals, divide to share)

5. Common mistakes

Mistake: Adding a zero in the wrong place when multiplying by 10. Fix: 23 × 10 = 230 — put the 0 at the end.
Mistake: Ignoring the remainder. Fix: If sharing is not exact, write the remainder (17 ÷ 5 = 3 r 2).
Mistake: Mixing up multiplication and division in word problems. Fix: Many equal groups → multiply; sharing a total → divide.

6. How to write better answers

Decide multiply (equal groups) or divide (sharing).
Use tables, splitting, or ×10/×100 to calculate.
For division, show the quotient and any remainder.
Write the answer with its meaning (seats, benches…).

7. Practice set

Find 12 × 6.
Multiply 34 × 10.
Multiply 8 × 100.
A bus has 40 seats. How many seats in 5 buses?
Divide 19 by 4. Give the quotient and remainder.
Split to multiply: 14 × 5.

8. Answer key

5 × 40 = 200 seats.
19 ÷ 4 = 4 remainder 3.
14 × 5 = (10 × 5) + (4 × 5) = 50 + 20 = 70.

9. Quick revision

Learn tables up to 20.
×10 adds one zero; ×100 adds two zeros.
Split numbers to multiply easily (12 × 4 = 40 + 8).
Division can be exact or leave a remainder (17 ÷ 5 = 3 r 2).
Multiply for totals; divide to share.

Key formulas & results

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

Core idea

To multiply by 10 add one zero (23 x 10 = 230); by 100 add two zeros.

Learn tables up to 20.

Math move

Split a number to multiply: 12 x 4 = (10 x 4) + (2 x 4) = 48.

Breaking numbers makes multiplication easier.

Exam habit

Division can be exact or leave a remainder: 17 / 5 = 3 remainder 2.

Write the remainder when sharing is not exact.

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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

✗ Adding a zero in the wrong place when multiplying by 10

✓ 23 x 10 = 230 - put the 0 at the end.

WATCH OUT

✗ Ignoring the remainder

✓ If sharing is not exact, write the remainder (17 / 5 = 3 r 2).

WATCH OUT

✗ Mixing up multiplication and division in word problems

✓ Many equal groups means multiply; sharing a total means divide.

NCERT exercises (with solutions)

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

Read, observe, and discuss

Use the bus, train, and ticket pictures in the textbook to set up multiplication and division before writing answers.

Questions

Notebook practice

Tables to 20, multiplying by 10 and 100, splitting numbers, and division with remainders.

Questions

Project or activity

Find total seats for several buses and share passengers into equal groups with any remainder.

Questions

Practice problems

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

Q1EASY· Multiply

Find 12 x 6.

▶ Show solution

72.

Q2EASY· Multiply

Multiply 34 x 10.

▶ Show solution

340.

Q3EASY· Multiply

Multiply 8 x 100.

▶ Show solution

800.

Q4MEDIUM· Word problem

A bus has 40 seats. How many seats in 5 buses?

▶ Show solution

5 x 40 = 200 seats.

Q5MEDIUM· Divide

Divide 19 by 4. Give the quotient and remainder.

▶ Show solution

19 / 4 = 4 remainder 3.

Q6HARD· Split

Use splitting to find 14 x 5.

▶ Show solution

14 x 5 = (10 x 5) + (4 x 5) = 50 + 20 = 70.

5-minute revision

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

•The Transport Museum is Chapter 13 of the Class 4 Maths Mela textbook.
•Learn tables up to 20.
•Multiply by 10 adds one zero; by 100 adds two zeros.
•Split numbers to multiply easily (12 x 4 = 40 + 8).
•Division can be exact or leave a remainder (17 / 5 = 3 r 2).
•Multiply for totals; divide to share.

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	Tables, multiplying by 10/100
Short Answer	2	1-2	Word problems or division with remainder
Activity / Project	3	0-1	Splitting to multiply or seating problems

Prep strategy

Practise tables up to 20
Multiply by 10 and 100 by adding zeros
Split numbers to multiply
Show remainders in division

Where this shows up in the real world

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

Travel and seating

Multiplication finds total seats; division shares passengers into groups.

Buying tickets

Multiplying ticket prices and counting change use these skills.

Sharing with leftovers

Remainders show when sharing is not exact in real life.

Exam strategy

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

Underline the command word: multiply, divide, or how many
Use x10 and x100 shortcuts
Show the remainder in division
Choose multiply for groups, divide for sharing

Going beyond the textbook

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

A train has 12 coaches of 72 seats each - find the total seats.
Share 100 passengers into buses of 30 and state how many buses and the remainder.

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.

To multiply by 10, write one zero at the end (23 x 10 = 230). To multiply by 100, write two zeros (23 x 100 = 2300).

A remainder is what is left over when a number cannot be shared exactly. For example, 17 shared into groups of 5 gives 3 groups and a remainder of 2.

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