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