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Ex 3.2, 1 - Chapter 3 Class 6 Playing with Numbers
Last updated at Dec. 16, 2024 by Teachoo
Chapter 3 Class 6 Playing with Numbers
Concept wise
- Factors and Multiples
- Perfect number
- Prime and Composite Numbers
-
Sum of prime numbers
- Prime numbers from 1 to 100
- Divisibility Tests - Divisibility by 5, 10, 2
- Divisibility Tests - Divisibility by 4, 8
- Divisibility Tests - Divisibility by 3, 6, 9
- Divisibility Tests - Divisibility by 11
- Divisibility Tests - All
- Common Multiples
- Common Factors
- More Divisibility Rules
- Factor Tree
- Prime Factorisation
- Highest Common Factor
- Lowest Common Multiple
- Statement questions on LCM
- Statement questions on HCF
Transcript
Ex 3.2, 1 What is the sum of any two (a) Odd numbers? (b) Even numbers?Odd numbers not multiples of 2. Example: 1, 3, 5, 7, 9, 11, 13, Even numbers are multiples of 2 Example: 2, 4, 6, 8, 10, 12, If we add 2 odd numbers 1 + 3 = 4 3 + 5 = 8 5 + 7 = 12 5 + 9 = 14 If we add 2 even numbers 2 + 4 = 6 2 + 6 = 8 4 + 6 = 10 8 + 6 = 14 Hence Sum of any two odd numbers is even and Sum of any two even numbers is even
