What are digit in square root of two digit number?

The square root of a two-digit number is equal to the sum of its two digits. The total number of students in a class is such a two-digit number.

What is the sum of two digit square number?

is a sum of two square numbers in only one way. 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 2, 5, 8, 10, 13, 17, 18, 20, 25, 26, 29, 32, 50, 65, 85, 125, 130, 145, 170, 185, 200….Square Number.

12	4	0, 1, 4, 9
13	7	0, 1, 3, 4, 9, 10, 12
14	8	0, 1, 2, 4, 7, 8, 9, 11
15	6	0, 1, 4, 6, 9, 10
16	4	0, 1, 4, 9

What are two ways to find the square root of a number?

Step 1: Divide the given number into its prime factors. Step 2: Form pairs of similar factors such that both factors in each pair are equal. Step 3: Take one factor from the pair. Step 4: Find the product of the factors obtained by taking one factor from each pair.

How many 2 digit numbers are there which on being reversed gives out perfect square?

So, there are 8 two digit positive integers which on adding with their mirror images (obtained by reversing the order of the digits) give perfect squares.

How do you find the square root of 21?

What Is the Square Root of 21?

1. The square root of a number is the number that gets multiplied to itself to give the original number.
2. √21= 4.582 × 4.582.
3. √21 = (21)½ in its exponential form and √21 in its simplest radical form.

What is a 2 digit perfect square?

As we know that 9 is the greatest digit of all the digits so we will form a 2-digit number. Hence, 99 is the greatest two-digit number. Thus, we get that 81 is the greatest number of two digits which is a perfect square.

How do you find the square root of 144?

What Is the Square Root of 144?

1. The square root of a number is the number (integer) which when multiplied by itself results in the original number.
2. 144 = a × a = 122
3. Then a = √144 = √(12 × 12)
4. 12 × 12 = 144 or -12 × -12 = 144.
5. The square root of 144 is +12 or -12.
6. This shows that 144 is a perfect square.

How many 2-digit numbers are there?

90
The total number of two digit numbers is 90. From 1 to 99 there are 99 numbers, out of which there are 9 one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. If one digit numbers are subtracted from 99 we get 90 two-digit numbers.

How many two digit numbers are there in one number?

You know the number is a two digit and has to be the square of a 1 digit number, so there are six possible numbers. 16, 25, 36, 49, 64, and 81 all other squares of one digit numbers are 1 digit numbers.

What is the sum of 2-digit numbers equal to 13?

Let xy be the 2-digit number, which must be a square. The 2-digit squares are 16, 25, 36, 49, 64, 81. Of these, only 49 has sum of digits equal to 13. Dwayne is in hot water for his latest comments. The big companies don’t want you to know his secrets. A number consists of two digits. The sum of the digits is 9.

How do you sum the rightmost digit in a given number?

General Algorithm for sum of digits in a given number: Get the rightmost digit of the number with help of remainder ‘\%’ operator by dividing it with 10 and add it to sum. Divide the number by 10 with help of ‘/’ operator to remove the rightmost digit. Below are the solutions to get sum of the digits.

How do you find the digital root of an integer?

Digital Root of a positive integer is calculated by adding the digits of the integer. If the resultant value is a single digit, then that digit is the digital root. If the resultant value contains two or more digits, those digits are summed and the process is repeated until a single-digit is obtained.