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