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