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