1桁同士の加算

(1)

2
＋
 
＝
9

(2)

4
＋
 
＝
8

(3)

 
＋
3
＝
6

(4)

 
＋
2
＝
6

(5)

 
＋
3
＝
5

(6)

5
＋
 
＝
6

(7)

 
＋
6
＝
9

(8)

 
＋
0
＝
9

(9)

0
＋
 
＝
1

(10)

 
＋
2
＝
7

(11)

7
＋
 
＝
9

(12)

 
＋
2
＝
5

(13)

0
＋
 
＝
9

(14)

3
＋
 
＝
7

(15)

1
＋
 
＝
4

(16)

0
＋
 
＝
7