|
1.
42 – 19 =
2
23
|
2.
44 – 11 =
33
2
|
3.
23 – 15 =
8
1
|
4.
33 + 17 =
50
2
|
|
5.
39 – 16 =
23
2
|
6.
43 + 2 =
45
2
|
7.
47 – 15 =
2
32
|
8.
37 + 8 =
45
2
|
|
9.
7 – 4 =
3
1
|
10.
24 – 16 =
1
8
|
11.
8 + 5 =
1
13
|
12.
25 – 0 =
25
2
|
|
13.
42 + 4 =
46
2
|
14.
11 + 10 =
2
21
|
15.
45 + 4 =
49
2
|
16.
40 – 40 =
0
2
|
|
17.
11 – 8 =
1
3
|
18.
10 + 21 =
31
2
|
19.
13 – 2 =
11
1
|
20.
46 + 2 =
48
2
|
|
1.
42 – 19 =
2
23
|
2.
44 – 11 =
33
2
|
3.
23 – 15 =
8
1
|
4.
33 + 17 =
50
2
|
|
5.
39 – 16 =
23
2
|
6.
43 + 2 =
45
2
|
7.
47 – 15 =
2
32
|
8.
37 + 8 =
45
2
|
|
9.
7 – 4 =
3
1
|
10.
24 – 16 =
1
8
|
11.
8 + 5 =
1
13
|
12.
25 – 0 =
25
2
|
|
13.
42 + 4 =
46
2
|
14.
11 + 10 =
2
21
|
15.
45 + 4 =
49
2
|
16.
40 – 40 =
0
2
|
|
17.
11 – 8 =
1
3
|
18.
10 + 21 =
31
2
|
19.
13 – 2 =
11
1
|
20.
46 + 2 =
48
2
|