1桁同士の加算

(1)

8
＋
 
＝
12

(2)

8
＋
 
＝
15

(3)

 
＋
9
＝
18

(4)

7
＋
 
＝
15

(5)

 
＋
3
＝
11

(6)

 
＋
6
＝
14

(7)

 
＋
1
＝
10

(8)

 
＋
7
＝
16

(9)

3
＋
 
＝
11

(10)

 
＋
3
＝
10

(11)

 
＋
6
＝
12

(12)

 
＋
9
＝
14

(13)

 
＋
6
＝
11

(14)

6
＋
 
＝
15

(15)

 
＋
8
＝
14

(16)

 
＋
3
＝
12