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