2桁同士の加算

(1)

77
＋
99
＝
 

(2)

34
＋
56
＝
 

(3)

77
＋
43
＝
 

(4)

91
＋
41
＝
 

(5)

96
＋
64
＝
 

(6)

60
＋
62
＝
 

(7)

48
＋
12
＝
 

(8)

89
＋
22
＝
 

(9)

66
＋
87
＝
 

(10)

81
＋
21
＝
 

(11)

71
＋
57
＝
 

(12)

71
＋
67
＝
 

(13)

29
＋
87
＝
 

(14)

20
＋
99
＝
 

(15)

92
＋
68
＝
 

(16)

85
＋
68
＝