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