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