Upon adding the even and odd numbers from 1 to 20, you should arrive at the sum of 210.
=====
...QBASIC program...
sumTotal% = 0
CLS
PRINT "PROGRAM: Add numbers 1 to 20"
PRINT "Number", "Total"
FOR eachLoopNo% = 1 TO 20
PRINT eachLoopNo%,
sumTotal% = sumTotal% + eachLoopNo%
PRINT sumTotal%
NEXT
PRINT "Sum total ="; sumTotal%
...Output...
PROGRAM: Add numbers 1 to 20
Number Total
1 1
2 3
3 6
4 10
5 15
6 21
7 28
8 36
9 45
10 55
11 66
12 78
13 91
14 105
15 120
16 136
17 153
18 171
19 190
20 210
Sum total = 210
Press any key to continue...
25
2 x 2 x 5 = 20 20 is even.
The difference is 2. (23 - 21 = 2).If we are talking about two odd numbers that come right after the number 20 then we mean the two consecutive odd numbers after 20.The difference between any consecutive odd numbers (or between any consecutive even numbers) is always 2.
The first 20 odd numbers are: 13579111315171921232527293133353739.
Well, isn't that a happy little math problem! Let's see, we can choose the odd numbers 1, 7, and 12 to make 20. Remember, there are many ways to approach a problem, so feel free to explore different combinations and see what works best for you. Just remember, there are no mistakes in math, just happy little accidents!
5 odd numbers CAN'T add up to an even number like 50
25
If the sum of two numbers is even, the two numbers are either both even or both odd. A few examples:2 + 4 = 6 (even + even = even)2 + 3 = 5 (even + odd = odd)5 + 2 = 7 (odd + even = odd)7+13 = 20 (odd + odd = even)
There are 40 odd numbers between 20 and 100. Remember that an odd number is every second number. There are 80 numbers between 20 and 100, so there are 40 odd numbers and 40 even numbers.
No.. All the numbers end with 0,2,4,6,8 are EVEN NUMBERSso 20 is an even number....
2 x 2 x 5 = 20 20 is even.
There have to be an even number of odd numbers in each group, and each group must have more than two odd numbers (since 19 + 17 is only 36); thus there must be four in one group and six in the other. There are many ways to get four odd numbers to add up to to 50; for example, you could take 1, 13, 17 and 19. The remaining six odd numbers will then also add up to 50.
Any number, regardless of odd or even, if multiplied by an even number, is always even. Ex: 4x6 is 24 4x5 is 20 5x5 is 25
The difference is 2. (23 - 21 = 2).If we are talking about two odd numbers that come right after the number 20 then we mean the two consecutive odd numbers after 20.The difference between any consecutive odd numbers (or between any consecutive even numbers) is always 2.
The first 20 odd numbers are: 13579111315171921232527293133353739.
There is no such combination to form an even no. 20 by combing 5 odd nos. as odd+odd=even even +even=evenodd+even=odd even+odd=odd adding 5 odd like
There are 20 odd numbers in 40.