MEDIUM
8th ICSE
IMPORTANT
Earn 100

There are 1000 children in a school. For a P.T. drill they have to stand in such a way that the number of rows is equal to number of columns. How many children would be left out in this arrangement?

Important Questions on Squares and Square Roots

HARD
8th ICSE
IMPORTANT
Amit walks 16 m south from his house and turns east to walk 63 m to reach his friend's house. While returning, he walks diagonally from his friend's house to reach back to his house. What distance did he walk while returning?
HARD
8th ICSE
IMPORTANT
A ladder 6 m long leaned against a wall. The ladder reaches the wall to a height of 4.8 m. Find the distance between the wall and the foot of the ladder.
MEDIUM
8th ICSE
IMPORTANT
Sum of first 10 odd natural numbers is _____.
MEDIUM
8th ICSE
IMPORTANT
Number of non-square numbers between 112 and 122 is _____.
EASY
8th ICSE
IMPORTANT
Number of zeros in the end of the square of 400 is _____.
MEDIUM
8th ICSE
IMPORTANT

All natural numbers are not perfect squares.

MEDIUM
8th ICSE
IMPORTANT

A perfect square can never be expressed as the product of pairs of equal prime factors.

EASY
8th ICSE
IMPORTANT

A number having 2, 3, 7 or 8 at its unit place is never a square number.