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Ex 5.2, 1 (i) - Chapter 5 Class 8 Squares and Square Roots
Last updated at April 16, 2024 by Teachoo
Finding square of large numbers
Chapter 5 Class 8 Squares and Square Roots
Concept wise
- Square numbers
- Properties of square numbers
- Sum of consecutive odd numbers
- Numbers between square numbers
- Pattern Solving
-
Finding square of large numbers
- Pythagorean triplets
- Square root
- Finding Square root through repeated subtraction
- Finding Square root through prime factorisation
- Checking if perfect square by prime factorisation
- Smallest number multiplied to get perfect square
- Smallest number divided to get perfect square
- Smallest square number divisible by numbers
- Finding number of digits in square root (without calculation)
- Finding square root by division method - Integers
- Least number subtracted to get a perfect square
- Least number added to get a perfect square
- Finding square root by division method - Decimals
- Statement Questions
Transcript
Ex 5.2, 1 Find the square of the following numbers. (i) 32We know that 32 = 30 + 2 Now, 322 = 32 × 32 = (30 + 2) × (30 + 2) = (30 + 2)2 = 302 + 22 + 2 × 30 × 2 = 900 + 4 + 120 = 1024
