Elephants, Tigers, and Leopards
CBSE · Class 4 · Mathematics
Quick revision notes for Elephants, Tigers, and Leopards — CBSE Class 4 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
NIM Game - Strategic Addition
- NIM game is played by two players taking turns to add either 1 or 2 to reach a target number
- The player who reaches the target number first wins
- To win when opponent reaches 6: add 1 or 2 to make 7 or 8, then you can always win
Addition Chart and Patterns
- Addition chart shows all possible sums when adding numbers from 0 to 12
- Each cell contains the sum of the row number and column number
- Patterns exist in rows, columns, and diagonals
Reverse and Add Method
- Take any 2-digit number, reverse its digits, then add both numbers
- The sum always follows specific patterns
- Some sums are impossible to achieve with this method
Wildlife Population Problems
- India has 3/4 of world's tiger population and 3/5 of Asiatic elephant population
- Karnataka has 6049 elephants, Kerala has 3054 elephants
- Gujarat has 1355 leopards, Karnataka has 1131, Madhya Pradesh has 1817
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Elephants, Tigers, and Leopards 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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