|
1.
? – 12 = 8
20
21
|
2.
? – 7 = 6
18
13
|
3.
16 – 0 =
9
16
|
4.
? – 4 = 7
11
12
|
|
5.
15 – 12 =
3
7
|
6.
12 – 3 =
9
10
|
7.
12 – 11 =
1
3
|
8.
? – 4 = 7
14
11
|
|
9.
? – 11 = 0
11
3
|
10.
? – 2 = 2
4
3
|
11.
8 – 5 =
1
3
|
12.
6 – 0 =
5
6
|
|
13.
? – 0 = 2
2
1
|
14.
14 – 8 =
6
3
|
15.
? – 17 = 1
18
23
|
16.
10 – 10 =
0
5
|
|
17.
1 – 0 =
1
5
|
18.
? – 10 = 2
12
3
|
19.
? – 12 = 6
1
18
|
20.
? – 10 = 8
13
18
|
|
1.
? – 12 = 8
20
21
|
2.
? – 7 = 6
18
13
|
3.
16 – 0 =
9
16
|
4.
? – 4 = 7
11
12
|
|
5.
15 – 12 =
3
7
|
6.
12 – 3 =
9
10
|
7.
12 – 11 =
1
3
|
8.
? – 4 = 7
14
11
|
|
9.
? – 11 = 0
11
3
|
10.
? – 2 = 2
4
3
|
11.
8 – 5 =
1
3
|
12.
6 – 0 =
5
6
|
|
13.
? – 0 = 2
2
1
|
14.
14 – 8 =
6
3
|
15.
? – 17 = 1
18
23
|
16.
10 – 10 =
0
5
|
|
17.
1 – 0 =
1
5
|
18.
? – 10 = 2
12
3
|
19.
? – 12 = 6
1
18
|
20.
? – 10 = 8
13
18
|