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