Class 5 Mathematics — Chapter 4: We the Travellers—II
Chapter 4: We the Travellers—II is a chapter in Class 5 Mathematics (Maths Mela), part of the CBSE NCERT curriculum followed by over 25 million students across India. This chapter covers 7 topics including Making Sums Equal by Interchanging Numbers, Addition of Multi-Digit Numbers with Regrouping, Subtraction of Multi-Digit Numbers with Regrouping. BrainWeave provides free AI-powered explanations — by voice or text, in Hindi or English — with no signup required.
What you'll learn
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▸Making Sums Equal by Interchanging NumbersCore conceptequal sumsinterchangebalancing numbersproblem-solvingnumber puzzles
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▸Addition of Multi-Digit Numbers with RegroupingCore conceptadditionmulti-digitregroupingplace valuesumcarrying over
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▸Subtraction of Multi-Digit Numbers with RegroupingCore conceptsubtractionmulti-digitregroupingplace valuedifferenceborrowing
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▸Inverse Relationship of Addition and SubtractionCore conceptinverse operationsadditionsubtractionnumber factsrelationshipmissing numbers
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▸Sums and Patterns of Consecutive Numbersconsecutive numberssumsnumber patternseven sumsodd sumsseries
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▸Problem Solving with Addition and Subtraction of Large NumbersCore conceptword problemsmulti-stepreal-worldlarge numbersestimationtotal
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▸Mental Math Strategies for Quick Calculationsmental mathquick additionquick subtractionnumber senserounding strategiescompleting sums
Chapter Summary
Students learn to balance two groups of numbers by strategically interchanging pairs of numbers to make their sums identical, focusing on efficiency and logical reasoning.
Students will master adding numbers up to 5 digits, consistently applying the regrouping (carrying over) technique across various place values (Ones, Tens, Hundreds, Thousands, Ten Thousands).
Students will master subtracting numbers up to 5 digits, consistently applying the regrouping (borrowing) technique across various place values.
Students will understand and demonstrate the fundamental inverse relationship between addition and subtraction, using this knowledge to complete number sentences and derive related facts.
Students will identify consecutive numbers, calculate their sums, and analyze patterns within these sums, such as even/odd properties and differences between successive sums, to find sums without direct calculation.
Students will apply their skills in multi-digit addition and subtraction to solve complex, multi-step real-world problems involving quantities like distances, money, and weights, often requiring estimation to verify answers.
Students will learn and employ mental arithmetic techniques for quickly finding missing numbers to complete sums (e.g., to 100, 1000) and for efficient subtraction of numbers like 9 or 99.
Practice Questions from this Chapter
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- Explain number patterns simply. Get Solution →
- Calculate distance to the moon. Get Solution →
- Show fuel usage examples. Get Solution →
- What is the quantity of fuel a motorbike can hold, according to the chapter? Get Solution →
- What is the definition of consecutive numbers? Get Solution →
- Where does the North-South Corridor in India start, according to the chapter? Get Solution →
- What is the total length of the North-South Corridor in 2019, based on the provided distances? Get Solution →
- What is the place where passengers board a ship called? Get Solution →
Did you know?
- 💡 The concept of zero originated in ancient India.
- 💡 The longest train journey in the world takes 13 days.
- 💡 Our number system uses ten digits, which is called base-10.
- 💡 Antarctica has no permanent roads for cars.
- 💡 A googol is the number one followed by one hundred zeros.
Frequently Asked Questions
How many topics are covered in this chapter?
This chapter covers 7 key topics: Making Sums Equal by Interchanging Numbers, Addition of Multi-Digit Numbers with Regrouping, Subtraction of Multi-Digit Numbers with Regrouping, Inverse Relationship of Addition and Subtraction, Sums and Patterns of Consecutive Numbers, and more. The BrainWeave AI tutor explains each one with examples.
Is Chapter 4: We the Travellers—II important for board exams?
Class 5 is a foundation year. Mastering this chapter now will help you build strong fundamentals for the higher classes.
Can I get NCERT solutions for this chapter in Hindi?
Yes. BrainWeave's AI tutor supports Hindi, English, and Hinglish for both voice and text chat. Just ask your question in your preferred language.
Is BrainWeave free for Class 5?
Yes. BrainWeave's free Spark plan gives generous daily messages — enough for regular homework. Premium features unlock when you bring your own free Google Gemini API key.
Can I use voice chat for this chapter?
Absolutely. Tap the mic, ask any question about Chapter 4: We the Travellers—II, and the AI tutor will explain it back in voice and text.
How is BrainWeave better than static NCERT solutions sites?
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