The Transport Museum
CBSE · Class 4 · Mathematics
Quick revision notes for The Transport Museum — CBSE Class 4 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Multiplication by 10 and Multiples of 10
- When we multiply any number by 10, we add a zero to the right of that number
- 2 × 10 = 20 (2 tens), 5 × 10 = 50 (5 tens), 8 × 10 = 80 (8 tens)
- For multiplying by multiples of 10 like 20, 30, 40: first multiply by the digit, then add a zero
Constructing Times Tables (11-20)
- Times tables for numbers 11-20 can be made by splitting arrangements
- For times-15 table: split 15 into 10 + 5, then add the products
- 5 × 15 = 5 × 10 + 5 × 5 = 50 + 25 = 75
Splitting and Doubling Method
- Even numbers can be split into two equal groups for easier multiplication
- 3 × 14 = 3 × 7 + 3 × 7 = 21 + 21 = 42 (double of 21)
- 6 × 14 = 6 × 7 + 6 × 7 = 42 + 42 = 84 (double of 42)
Multiplication by 100 and Multiples of 100
- Multiplying by 100 means adding two zeros to the right
- 2 × 100 = 200 (2 hundreds), 11 × 100 = 1100 (11 hundreds)
- 27 × 100 = 2700, breaking it as 20 hundreds + 7 hundreds = 2000 + 700
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The Transport Museum covers several key topics that are frequently asked in CBSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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