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