The nth odd number is given by the formula 2n – 1. For example, the 1st odd number is 1, the 2nd is 3 and so on. This formula helps in calculating square numbers as sums of odd numbers. Class 8 ...
Category: Class 8 Maths
NCERT Solutions for Class 8 Maths all chapters updated for academic session 2020-2021.
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There are 10 square numbers between 1 and 100 and 4 between 101 and 200. The largest square number less than 1000 is 961, which is 31². Square numbers become less frequent in higher number ranges. Class 8 Mathematics Ganita Prakash ...
The square of an even number is always even and the square of an odd number is always odd. This means parity remains the same. So, if the original number is even or odd, its square follows the same parity. Class ...
To find the 36th odd number, we use the formula: 2n – 1. So, 2 × 36 – 1 = 71. Therefore, the 36th odd number is 71, which helps in finding squares using the sum of odd numbers. Class 8 ...
If a number ends with 3 zeros, its square will end with 6 zeros. Squaring multiplies the number of trailing zeros by 2 because each zero represents a factor of 10 and squaring means multiplying those factors again. Class 8 NCERT ...