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