|
1.
46 – 4 =
42
2
|
2.
39 – 9 =
30
2
|
3.
48 + 0 =
48
2
|
4.
4 – 0 =
4
1
|
|
5.
50 – 30 =
20
2
|
6.
38 – 16 =
2
22
|
7.
43 – 31 =
12
1
|
8.
16 – 8 =
8
1
|
|
9.
17 – 14 =
1
3
|
10.
4 – 4 =
2
0
|
11.
22 + 20 =
42
2
|
12.
32 + 8 =
2
40
|
|
13.
1 – 1 =
0
2
|
14.
7 + 43 =
2
50
|
15.
33 – 26 =
1
7
|
16.
4 – 3 =
2
1
|
|
17.
28 – 20 =
8
1
|
18.
11 – 4 =
7
1
|
19.
10 + 32 =
42
2
|
20.
23 – 13 =
10
1
|
|
1.
46 – 4 =
42
2
|
2.
39 – 9 =
30
2
|
3.
48 + 0 =
48
2
|
4.
4 – 0 =
4
1
|
|
5.
50 – 30 =
20
2
|
6.
38 – 16 =
2
22
|
7.
43 – 31 =
12
1
|
8.
16 – 8 =
8
1
|
|
9.
17 – 14 =
1
3
|
10.
4 – 4 =
2
0
|
11.
22 + 20 =
42
2
|
12.
32 + 8 =
2
40
|
|
13.
1 – 1 =
0
2
|
14.
7 + 43 =
2
50
|
15.
33 – 26 =
1
7
|
16.
4 – 3 =
2
1
|
|
17.
28 – 20 =
8
1
|
18.
11 – 4 =
7
1
|
19.
10 + 32 =
42
2
|
20.
23 – 13 =
10
1
|