Multiple of a number ending with 5

on
0 0
Read Time:22 Second

A number that ends in 5 can be written as 10x + 5 or 10y + 5. So we multiply those factors and re-group. The term xy + (x + y)/2 means to add the product and the average of the leading digits. Then you multiply by 100 and finally add 25.

1Add the and average of leading digits

2- Multiply by 100

3-Add 25

Example 1

Example 2

Example 3

Example 4

Happy
Happy
0 %
Sad
Sad
0 %
Excited
Excited
0 %
Sleepy
Sleepy
0 %
Angry
Angry
0 %
Surprise
Surprise
0 %

Average Rating

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Leave a Reply

Your email address will not be published.