|
1.
18 – 9 =
1
2
3
9
|
2.
34 – 20 =
14
2
3
1
|
3.
1 + 47 =
3
4
2
48
|
4.
9 – 4 =
1
2
3
5
|
|
5.
2 – 1 =
4
1
2
3
|
6.
21 + 28 =
49
2
4
3
|
7.
42 – 8 =
3
2
4
34
|
8.
47 – 25 =
4
22
3
2
|
|
9.
45 – 38 =
1
3
2
7
|
10.
38 – 21 =
3
17
4
2
|
11.
5 + 1 =
1
2
3
6
|
12.
18 – 10 =
2
8
1
3
|
|
13.
41 – 30 =
1
3
2
11
|
14.
45 + 5 =
3
4
50
2
|
15.
7 + 4 =
11
2
1
3
|
16.
34 – 27 =
2
7
1
3
|
|
17.
10 – 2 =
2
3
8
1
|
18.
49 – 9 =
2
4
3
40
|
19.
2 + 10 =
3
1
12
2
|
20.
19 – 9 =
2
3
10
1
|
|
1.
18 – 9 =
1
2
3
9
|
2.
34 – 20 =
14
2
3
1
|
3.
1 + 47 =
3
4
2
48
|
4.
9 – 4 =
1
2
3
5
|
|
5.
2 – 1 =
4
1
2
3
|
6.
21 + 28 =
49
2
4
3
|
7.
42 – 8 =
3
2
4
34
|
8.
47 – 25 =
4
22
3
2
|
|
9.
45 – 38 =
1
3
2
7
|
10.
38 – 21 =
3
17
4
2
|
11.
5 + 1 =
1
2
3
6
|
12.
18 – 10 =
2
8
1
3
|
|
13.
41 – 30 =
1
3
2
11
|
14.
45 + 5 =
3
4
50
2
|
15.
7 + 4 =
11
2
1
3
|
16.
34 – 27 =
2
7
1
3
|
|
17.
10 – 2 =
2
3
8
1
|
18.
49 – 9 =
2
4
3
40
|
19.
2 + 10 =
3
1
12
2
|
20.
19 – 9 =
2
3
10
1
|