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