1.
78 + 9 =
2
87
|
2.
91 – 53 =
2
38
|
3.
52 – 49 =
3
1
|
4.
53 + 21 =
2
74
|
5.
53 + 12 =
65
2
|
6.
74 + 11 =
2
85
|
7.
8 + 73 =
2
81
|
8.
65 – 3 =
2
62
|
9.
39 – 38 =
2
1
|
10.
9 – 7 =
1
2
|
11.
24 – 7 =
17
2
|
12.
45 + 0 =
45
2
|
13.
28 – 2 =
2
26
|
14.
96 – 60 =
2
36
|
15.
13 + 73 =
86
2
|
16.
28 – 16 =
12
1
|
17.
71 – 28 =
43
2
|
18.
5 + 10 =
1
15
|
19.
53 – 3 =
50
2
|
20.
11 – 4 =
1
7
|
1.
78 + 9 =
2
87
|
2.
91 – 53 =
2
38
|
3.
52 – 49 =
3
1
|
4.
53 + 21 =
2
74
|
5.
53 + 12 =
65
2
|
6.
74 + 11 =
2
85
|
7.
8 + 73 =
2
81
|
8.
65 – 3 =
2
62
|
9.
39 – 38 =
2
1
|
10.
9 – 7 =
1
2
|
11.
24 – 7 =
17
2
|
12.
45 + 0 =
45
2
|
13.
28 – 2 =
2
26
|
14.
96 – 60 =
2
36
|
15.
13 + 73 =
86
2
|
16.
28 – 16 =
12
1
|
17.
71 – 28 =
43
2
|
18.
5 + 10 =
1
15
|
19.
53 – 3 =
50
2
|
20.
11 – 4 =
1
7
|