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