Arrange the following in the descending order 23 - 21 ) , ( 19 - 17 ) , ( 21 - 19 .

19 - 17 ) > ( 21 - 19 ) > ( 23 - 21

23 - 21 ) > ( 21 - 19 ) > ( 19 - 17

23 - 21 ) > ( 19 - 17 ) > ( 21 - 19

21 - 19 ) > ( 23 - 21 ) > ( 19 - 17

MEDIUM

Earn 100

Fill in the missing odd number and write the square number in the circle.

Important Questions on Square and Cube

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The value of

\sqrt{10 + \sqrt{24 + \sqrt{131 + \sqrt{153 + \sqrt{256}}}}}

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

What is the square root of

23 - 4 \sqrt{15}

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

What is the value of

2 + \sqrt{2 + \sqrt{2 + \sqrt{. . . . . . . . . .}}}

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Prove that the product of

2

consecutive even numbers added to

1

gives a perfect square.

MEDIUM

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The students of a class donated a sum of

₹ 2, 809

to a fund. Each student donated as many rupees as the number of students in the class. The number of students in the class is:

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

\frac{\sqrt{50} + \sqrt{98}}{\sqrt{18}} = ?

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The smallest integer with

4

digits which is a perfect square is:

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Which is the smallest perfect square number exactly divisible by

4, 5, 6

and

9

HARD

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The LCM of two numbers is

168

and their HCF is

12

. If the difference between the numbers is

60

. What is the sum of the numbers?

MEDIUM

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The square root which of the following is a rational number?

MEDIUM

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The unit digit in the expression

55^{725} + 73^{5810} + 22^{853}

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

What is the least number that should be added to the product of

7 \times 8 \times 9 \times 10

to make it a perfect square?

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Consider the following numbers:

$1 . 2222 2 . 11664 3 . 343343 4 . 220347$

Which of the above are not perfect squares?

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Arrange the following in the descending order $(\sqrt{23} - \sqrt{21}), (\sqrt{19} - \sqrt{17}), (\sqrt{21} - \sqrt{19})$ .

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The value of

\sqrt{40 + \sqrt{9 \sqrt{81}}}

is:

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Find the value of the following, using the diagonal method: $(86)^{2}$

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The square root of

5776

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Find the value of the following, using the diagonal method: $(256)^{2}$

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

Which of the following cannot be the unit digit of a perfect square number?

EASY

Mathematics>Arithmetic>Square and Cube>Square Numbers and their Properties

The least number that must be subtracted from

7577

to get a perfect square is:

Fill in the missing odd number and write the square number in the circle.

Important Questions on Square and Cube

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