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