1桁同士の加算

(1)

 
＋
2
＝
6

(2)

 
＋
5
＝
5

(3)

5
＋
 
＝
5

(4)

 
＋
1
＝
4

(5)

4
＋
 
＝
8

(6)

 
＋
4
＝
6

(7)

0
＋
 
＝
7

(8)

 
＋
3
＝
7

(9)

 
＋
1
＝
9

(10)

5
＋
 
＝
7

(11)

 
＋
8
＝
9

(12)

 
＋
5
＝
9

(13)

1
＋
 
＝
8

(14)

 
＋
0
＝
0

(15)

 
＋
2
＝
2

(16)

3
＋
 
＝
7