1桁同士の加算

(1)

 
＋
3
＝
9

(2)

0
＋
 
＝
2

(3)

1
＋
 
＝
3

(4)

 
＋
8
＝
9

(5)

3
＋
 
＝
7

(6)

5
＋
 
＝
6

(7)

8
＋
 
＝
8

(8)

1
＋
 
＝
1

(9)

 
＋
7
＝
7

(10)

2
＋
 
＝
6

(11)

0
＋
 
＝
5

(12)

5
＋
 
＝
8

(13)

 
＋
0
＝
6

(14)

1
＋
 
＝
2

(15)

 
＋
1
＝
3

(16)

 
＋
2
＝
7