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