|
1.
90 – 21 =
69
2
|
2.
87 + 4 =
2
91
|
3.
40 + 50 =
90
2
|
4.
81 + 17 =
2
98
|
|
5.
76 – 32 =
44
2
|
6.
6 – 4 =
2
1
|
7.
83 – 52 =
2
31
|
8.
67 + 22 =
89
2
|
|
9.
47 + 50 =
97
2
|
10.
8 + 72 =
2
80
|
11.
57 – 48 =
9
1
|
12.
5 + 12 =
17
2
|
|
13.
62 – 17 =
45
2
|
14.
46 + 5 =
51
2
|
15.
55 – 21 =
34
2
|
16.
72 + 22 =
2
94
|
|
17.
30 + 13 =
2
43
|
18.
8 + 65 =
2
73
|
19.
55 + 25 =
80
2
|
20.
35 + 14 =
49
2
|
|
1.
90 – 21 =
69
2
|
2.
87 + 4 =
2
91
|
3.
40 + 50 =
90
2
|
4.
81 + 17 =
2
98
|
|
5.
76 – 32 =
44
2
|
6.
6 – 4 =
2
1
|
7.
83 – 52 =
2
31
|
8.
67 + 22 =
89
2
|
|
9.
47 + 50 =
97
2
|
10.
8 + 72 =
2
80
|
11.
57 – 48 =
9
1
|
12.
5 + 12 =
17
2
|
|
13.
62 – 17 =
45
2
|
14.
46 + 5 =
51
2
|
15.
55 – 21 =
34
2
|
16.
72 + 22 =
2
94
|
|
17.
30 + 13 =
2
43
|
18.
8 + 65 =
2
73
|
19.
55 + 25 =
80
2
|
20.
35 + 14 =
49
2
|