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