Addition I
30 + 50 =
80
40 + 50 =
90
90 - 50 =
40
70 - 30 =
40
43 + 5 =
48
35 + 5 =
40
68 - 3 =
65
97 - 4 =
93
34 + 45 =
79
23 + 46 =
69
98 - 34 =
64
76 - 52 =
24
48 + 7 =
56
45 + 9 =
64
93 - 7 =
86
85 - 8 =
77
56 + 28 =
84
48 + 19 =
67
56 - 28 =
28
73 - 55 =
18