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