Q1
Which of these is a palindrome?
A1221
B1234
C5678
D9081
CBSEClass 6 (CBSE)MathematicsCh 3 · Topic 2
Palindromes and Number Puzzles
Exploring special numbers and puzzles like palindromes.
Core concept
One popular number puzzle involves taking any number, reversing its digits, adding the two together, and repeating this process — surprisingly, this often produces a palindrome after a few steps (for example, 48 + 84 = 132; 132 + 231 = 363, a palindrome). Such puzzles, while playful, help build number sense, mental arithmetic skills, and an appreciation for patterns hidden within seemingly ordinary numbers.
Exam highlight
Key diagram
- Show examples of palindrome numbers and the reverse-and-add process.
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Quick notes
• A palindrome reads the same forwards and backwards (e.g., 121, 3553, 12321).
• The reverse-and-add process can turn many numbers into a palindrome after a few steps.
• Example: 48+84=132; 132+231=363 (a palindrome).
• Number puzzles like these build number sense and mental arithmetic skills.