|
1.
30 + 17 =
47
2
|
2.
21 + 17 =
2
38
|
3.
31 + 7 =
2
38
|
4.
23 – 20 =
1
3
|
|
5.
2 – 2 =
0
2
|
6.
12 – 9 =
3
1
|
7.
40 + 9 =
2
49
|
8.
17 – 11 =
1
6
|
|
9.
22 + 26 =
2
48
|
10.
20 + 28 =
2
48
|
11.
20 – 10 =
10
1
|
12.
29 + 7 =
36
2
|
|
13.
37 – 37 =
0
2
|
14.
5 – 1 =
1
4
|
15.
8 + 28 =
36
2
|
16.
43 + 5 =
48
2
|
|
17.
19 – 15 =
1
4
|
18.
11 + 7 =
18
2
|
19.
14 + 10 =
2
24
|
20.
5 – 3 =
1
2
|
|
1.
30 + 17 =
47
2
|
2.
21 + 17 =
2
38
|
3.
31 + 7 =
2
38
|
4.
23 – 20 =
1
3
|
|
5.
2 – 2 =
0
2
|
6.
12 – 9 =
3
1
|
7.
40 + 9 =
2
49
|
8.
17 – 11 =
1
6
|
|
9.
22 + 26 =
2
48
|
10.
20 + 28 =
2
48
|
11.
20 – 10 =
10
1
|
12.
29 + 7 =
36
2
|
|
13.
37 – 37 =
0
2
|
14.
5 – 1 =
1
4
|
15.
8 + 28 =
36
2
|
16.
43 + 5 =
48
2
|
|
17.
19 – 15 =
1
4
|
18.
11 + 7 =
18
2
|
19.
14 + 10 =
2
24
|
20.
5 – 3 =
1
2
|