1桁同士の加算

(1)

8
＋
 
＝
15

(2)

 
＋
5
＝
12

(3)

 
＋
5
＝
11

(4)

 
＋
7
＝
12

(5)

 
＋
1
＝
10

(6)

 
＋
6
＝
11

(7)

4
＋
 
＝
10

(8)

9
＋
 
＝
16

(9)

 
＋
9
＝
13

(10)

 
＋
6
＝
13

(11)

8
＋
 
＝
14

(12)

3
＋
 
＝
10

(13)

7
＋
 
＝
10

(14)

8
＋
 
＝
17

(15)

9
＋
 
＝
13

(16)

6
＋
 
＝
10