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