1.
12 + 15 =
2
27
|
2.
63 – 37 =
2
26
|
3.
35 – 24 =
11
1
|
4.
75 – 40 =
2
35
|
5.
52 + 17 =
2
69
|
6.
22 – 14 =
8
1
|
7.
72 + 4 =
2
76
|
8.
35 – 4 =
2
31
|
9.
42 + 7 =
49
2
|
10.
61 + 9 =
2
70
|
11.
26 + 58 =
2
84
|
12.
13 + 87 =
100
2
|
13.
56 + 42 =
98
2
|
14.
80 + 14 =
94
2
|
15.
53 + 1 =
54
2
|
16.
83 + 4 =
2
87
|
17.
53 – 50 =
1
3
|
18.
77 + 20 =
97
2
|
19.
56 – 48 =
8
1
|
20.
19 + 5 =
24
2
|
1.
12 + 15 =
2
27
|
2.
63 – 37 =
2
26
|
3.
35 – 24 =
11
1
|
4.
75 – 40 =
2
35
|
5.
52 + 17 =
2
69
|
6.
22 – 14 =
8
1
|
7.
72 + 4 =
2
76
|
8.
35 – 4 =
2
31
|
9.
42 + 7 =
49
2
|
10.
61 + 9 =
2
70
|
11.
26 + 58 =
2
84
|
12.
13 + 87 =
100
2
|
13.
56 + 42 =
98
2
|
14.
80 + 14 =
94
2
|
15.
53 + 1 =
54
2
|
16.
83 + 4 =
2
87
|
17.
53 – 50 =
1
3
|
18.
77 + 20 =
97
2
|
19.
56 – 48 =
8
1
|
20.
19 + 5 =
24
2
|