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