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