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