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