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Question 1 - Figure it out - Page 122, 123 - Chapter 5 Class 8 - Number Play (Ganita Prakash)
Last updated at January 7, 2026 by Teachoo
Class 8 (Ganita Prakash - 1, 2 & Old NCERT)
Chapter 5 Class 8 - Number Play (Ganita Prakash)
- Sum of Consecutive Numbers
- Parity of Arithmetic & Algebraic Expressions
- Pairs to Make Fours
- Factors and Multiples
- Always, Sometimes, or Never
- What Remains?
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Figure it out - Page 122, 123
- Divisibility Rules - 2, 5, 10 and 3
- Shortcut for Divisibility by 9
- Figure it out - Page 126
- Shortcut for Divisibility by 11
- Divisibility Shortcuts for Other Numbers
- Digital Roots
- Figure it out - Page 131
- Digits in Disguise
- Figure it out - Page 132, 133, 134
Transcript
Question 1 The sum of four consecutive numbers is 34. What are these numbers?Let the smallest number be x Thus, the four consecutive numbers are x, x + 1, x + 2, x + 3 Now, Sum of the four consecutive numbers = 34 x + (x + 1) + (x + 2) + (x + 3) = 34 (x + x + x + x) + (1 + 2 + 3) = 34 4x + 6 = 34 4x = 34 – 6 4x = 28 x = 28/4 x = 7 Thus, the four consecutive numbers are 7, 8, 9, 10
