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Revision Notes

We the Travellers—II

CBSE · Class 5 · Mathematics

Quick revision notes for We the Travellers—II — CBSE Class 5 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

40 questions56 flashcards5 concepts

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Key Topics to Revise

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1. Making sums equal

  • Two groups of numbers can sometimes be balanced by interchanging a pair of numbers.
  • The aim is to make the sums of both groups equal using the least number of moves.
  • A careful trial of different pairs helps find the best swap.
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2. Fuel arithmetic and place value addition

  • Different vehicles need different quantities of fuel: motorbikes use 5 to 15 litres, cars 15 to 50 litres, lorries and trucks 150 to 500 litres, and a train 5,000 litres.
  • Fuel should be saved because it is limited.
  • Reducing fuel use also helps cut pollution.
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3. Relationship between addition and subtraction

  • Addition and subtraction are related operations.
  • If 46 + 21 = 67, then 67 - 21 = 46 and 67 - 46 = 21.
  • If 198 - 98 = 100, then 100 + 98 = 198 and 198 - 100 = 98.
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4. Consecutive numbers and their sums

  • Numbers that follow one another in order without skipping any number are called consecutive numbers.
  • Examples include 1, 2, 3, 4, 5 and 29, 30, 31, 32.
  • The sum of consecutive numbers shows patterns.

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Full Notes

Key Concepts

Two groups of numbers can beDifferent vehicles need different quantitiesIf one addition sentence is knownLarge numbers are added by keepingLarge numbers are subtracted by aligning

Frequently Asked Questions

What are the important topics in We the Travellers—II for CBSE Class 5 Mathematics?
We the Travellers—II covers several key topics that are frequently asked in CBSE Class 5 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in We the Travellers—II — CBSE Class 5 Mathematics?
Understand the core concepts first, then work through the 40 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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