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