In the above program the sum of two numbers i.e. 15 and 10 is stored in variable sum. sum = num1 + num2; After that it is displayed on screen using the cout object.

Example 1

1. public class IntegerSumExample1 {
2. public static void main(String[] args) {
3. int a = 65;
4. int b = 35;
5. // It will return the sum of a and b.
6. System.out.println(“The sum of a and b is = ” + Integer.sum(a, b));
7. }
8. }

To get sum of each digit by C++ program, use the following algorithm:

1. Step 1: Get number by user.
2. Step 2: Get the modulus/remainder of the number.
3. Step 3: sum the remainder of the number.
4. Step 4: Divide the number by 10.
5. Step 5: Repeat the step 2 while number is greater than 0.

Getting the sum using a for loop implies that you should:

1. Create an array of numbers, in the example int values.
2. Create a for statement, with an int variable from 0 up to the length of the array, incremented by one each time in the loop.
3. In the for statement add each of the array’s elements to an int sum.

C Program

1. #include
2. int main()
3. {
4. int c, sum, t;
5. char n[1000];
6. printf(“Enter the number?” );
7. scanf(“%s”, n);
8. sum = c = 0;

This method takes the asset’s expected life and adds together the digits for each year; so if the asset was expected to last for five years, the sum of the years’ digits would be obtained by adding: 5 + 4 + 3 + 2 + 1 to get a total of 15.

Steps:

1. Declare a character array.
2. Assign number as string using sprintf() function in character array.
3. Extract the digits now by using simple loop from 0 to string length -1.
4. Print the each digit.

4 Answers

1. Use str to convert the number into a string so that you can iterate over it.
2. Use a list comprehension to split the string into individual digits.
3. Use int to convert the digits back into integers.

Extracting digits of a number is very simple. When you divide a number by 10, the remainder is the digit in the unit’s place. You got your digit, now if you perform integer division on the number by 10, it will truncate the number by removing the digit you just extracted.

Divide whole numbers

1. Divide the first digit of the dividend by the divisor.
2. Write the quotient above the dividend.
3. Multiply the quotient by the divisor and write the product under the dividend.
4. Subtract that product from the dividend.
5. Bring down the next digit of the dividend.

The formal long division method is a step by step method of supporting children to understand both conceptually and practically how to divide one three-digit-number by a two or three-digit number.

Division method can be explained in steps using four operations namely, divide, multiply, subtract and bring down. Step 1: Divide the given number by divisor by identifying the suitable integer. Step 2: Multiply the divisor and integer (quotient) to get the number to be subtracted from the dividend.