Ex 5.3, 1 (i) - Chapter 5 Class 8 Squares and Square Roots
Last updated at April 16, 2024 by Teachoo
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 5.3, 1 What could be the possible ‘one’s’ digits of the square root of each of the following numbers? (i) 9801We know that If a number ends with 1 if square root can end with 1 or 9 ∴ Possible unit digits = 1 or 9 Rough As 1^2 = 1 9^2 = 81 √1 = 1 √81 = 9
