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