Question

Write a program that adds all even numbers between 1 and 100.

Answer 1

In high school computer science, we can write a program that adds all even numbers between 1 and 100 using a for loop and modulus operator to check for even numbers, accumulating the sum in a variable.

Step-by-step explanation:

To add all even numbers between 1 and 100, we can write a simple program loop that iterates through this range, checks if a number is even, and if so, adds it to a sum. Below is an example written in Python, which is commonly taught in high school computer science classes:

sum_even = 0
for number in range(1, 101):
if number % 2 == 0:
sum_even += number
print(sum_even)
In this code, sum_even is initialized to 0 and is used to keep track of the sum of even numbers. The for loop runs from 1 to 100 (inclusive), and the if statement checks whether the number is even by using the modulus operator %. If the number is even (i.e., number % 2 equals zero), it is added to sum_even. After the loop completes, the program prints the total sum of even numbers which is the answer.