1.
20 + 23 =
2
43
|
2.
54 – 54 =
0
2
|
3.
93 + 1 =
94
2
|
4.
26 – 21 =
1
5
|
5.
5 + 77 =
82
2
|
6.
72 – 38 =
2
34
|
7.
65 – 54 =
11
1
|
8.
97 – 48 =
49
2
|
9.
30 – 8 =
2
22
|
10.
57 – 27 =
30
2
|
11.
4 + 16 =
2
20
|
12.
50 – 24 =
2
26
|
13.
66 – 51 =
1
15
|
14.
37 – 2 =
2
35
|
15.
34 + 23 =
57
2
|
16.
87 + 10 =
97
2
|
17.
35 + 30 =
65
2
|
18.
33 – 29 =
4
1
|
19.
30 – 19 =
1
11
|
20.
99 + 1 =
100
2
|
1.
20 + 23 =
2
43
|
2.
54 – 54 =
0
2
|
3.
93 + 1 =
94
2
|
4.
26 – 21 =
1
5
|
5.
5 + 77 =
82
2
|
6.
72 – 38 =
2
34
|
7.
65 – 54 =
11
1
|
8.
97 – 48 =
49
2
|
9.
30 – 8 =
2
22
|
10.
57 – 27 =
30
2
|
11.
4 + 16 =
2
20
|
12.
50 – 24 =
2
26
|
13.
66 – 51 =
1
15
|
14.
37 – 2 =
2
35
|
15.
34 + 23 =
57
2
|
16.
87 + 10 =
97
2
|
17.
35 + 30 =
65
2
|
18.
33 – 29 =
4
1
|
19.
30 – 19 =
1
11
|
20.
99 + 1 =
100
2
|