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