1.
45 – 11 =
2
3
4
34
|
2.
23 – 20 =
2
1
4
3
|
3.
22 – 14 =
2
3
1
8
|
4.
43 + 5 =
2
48
3
4
|
5.
32 – 5 =
2
27
4
3
|
6.
42 + 1 =
3
4
2
43
|
7.
33 – 28 =
2
1
3
5
|
8.
9 + 40 =
3
49
4
2
|
9.
49 + 1 =
3
4
50
2
|
10.
22 – 0 =
4
2
22
3
|
11.
4 – 3 =
3
1
4
2
|
12.
1 + 28 =
29
2
3
4
|
13.
16 + 4 =
2
20
3
4
|
14.
48 + 2 =
4
3
50
2
|
15.
50 + 0 =
50
3
4
2
|
16.
32 + 12 =
4
3
2
44
|
17.
42 + 0 =
2
42
4
3
|
18.
14 – 14 =
2
0
3
4
|
19.
1 – 1 =
0
4
3
2
|
20.
41 + 0 =
2
3
41
4
|
1.
45 – 11 =
2
3
4
34
|
2.
23 – 20 =
2
1
4
3
|
3.
22 – 14 =
2
3
1
8
|
4.
43 + 5 =
2
48
3
4
|
5.
32 – 5 =
2
27
4
3
|
6.
42 + 1 =
3
4
2
43
|
7.
33 – 28 =
2
1
3
5
|
8.
9 + 40 =
3
49
4
2
|
9.
49 + 1 =
3
4
50
2
|
10.
22 – 0 =
4
2
22
3
|
11.
4 – 3 =
3
1
4
2
|
12.
1 + 28 =
29
2
3
4
|
13.
16 + 4 =
2
20
3
4
|
14.
48 + 2 =
4
3
50
2
|
15.
50 + 0 =
50
3
4
2
|
16.
32 + 12 =
4
3
2
44
|
17.
42 + 0 =
2
42
4
3
|
18.
14 – 14 =
2
0
3
4
|
19.
1 – 1 =
0
4
3
2
|
20.
41 + 0 =
2
3
41
4
|