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