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