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