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