This document provides examples of addition in a base-5 (quinary) number system. It gives the conversions for single-digit numbers 5-8 in base-5. It then shows sample addition problems converting the sums back to base-5 numbers, such as 4+3=7 becoming the base-5 number 12. Finally, it provides two multi-digit addition examples in base-5 notation.

1. Associate Professor Nadeem uddin
Addition Facts in quinary:
5 = 10
6 = 11
7 = 12
8 = 13 and so on
(a) 2
+ 1
3 (No need to change base)
(b) 3
+ 2
10 (3 + 2 = 5) (5 in base 5 is 10)
(c) 4
+ 3
12 (4 + 3 = 7) (7 in base 5 is 12)
(d) 4
+ 4
13 (4+4 =8) (8 in base 5 is 13)
Example –17
4 3 2 + 3 4 1
Solution: 4 3 2 (2+1 = 3) (No need to change base)
+ 3 4 1 (3+4 = 7) (7 in base 5 is 12)
1 3 2 3 (1+4+3 = 8) (8 in base 5 is 13)
Example- 18
1 2 4 2 1 4 + 4 0 3 3 1 2
Solution:
1 2 4 2 1 4
+ 4 0 3 3 1 2
1 0 3 3 0 3 1