Goa Board Solutions for Chapter: Squares and Square Roots, Exercise 10: EXERCISE

Check whether the square of the following number is odd number or not:

$2826$

Check whether the square of the following number is odd number or not:

$7779$

Check whether the square of the following number is odd number or not:

$82004$

Without adding find the sum

$1+3+5+7+9+11+13+15+17+19$

Without adding find the sum

$1+3+5+7+9+11+13+15+17+19+21+23$

 Express $121$ as the sum of $11$ odd numbers.

How many numbers lie between squares of the following numbers?

$25$ and $26$
 

How many numbers lie between squares of the following numbers?
$99$ and $100$