1.
3 – 0 =
3
6
|
2.
2 – 2 =
2
0
|
3.
1 – 0 =
4
1
|
4.
? – 1 = 5
8
6
|
5.
? – 10 = 0
6
10
|
6.
12 – 4 =
4
8
|
7.
7 – 1 =
3
6
|
8.
7 – 7 =
0
3
|
9.
? – 0 = 3
4
3
|
10.
6 – 2 =
4
2
|
11.
? – 8 = 2
6
10
|
12.
? – 2 = 0
2
5
|
13.
3 – 1 =
2
4
|
14.
3 – 0 =
3
5
|
15.
6 – 5 =
1
2
|
16.
5 – 4 =
1
4
|
17.
? – 1 = 2
8
3
|
18.
? – 3 = 4
7
2
|
19.
1 – 1 =
0
3
|
20.
4 – 4 =
0
4
|
1.
3 – 0 =
3
6
|
2.
2 – 2 =
2
0
|
3.
1 – 0 =
4
1
|
4.
? – 1 = 5
8
6
|
5.
? – 10 = 0
6
10
|
6.
12 – 4 =
4
8
|
7.
7 – 1 =
3
6
|
8.
7 – 7 =
0
3
|
9.
? – 0 = 3
4
3
|
10.
6 – 2 =
4
2
|
11.
? – 8 = 2
6
10
|
12.
? – 2 = 0
2
5
|
13.
3 – 1 =
2
4
|
14.
3 – 0 =
3
5
|
15.
6 – 5 =
1
2
|
16.
5 – 4 =
1
4
|
17.
? – 1 = 2
8
3
|
18.
? – 3 = 4
7
2
|
19.
1 – 1 =
0
3
|
20.
4 – 4 =
0
4
|