|
1.
2 – 1 =
2
1
|
2.
14 + 15 =
2
29
|
3.
50 – 23 =
2
27
|
4.
10 – 7 =
1
3
|
|
5.
40 – 18 =
2
22
|
6.
46 + 1 =
47
2
|
7.
38 + 0 =
2
38
|
8.
45 – 1 =
44
2
|
|
9.
12 – 7 =
5
1
|
10.
30 – 15 =
15
1
|
11.
9 + 4 =
1
13
|
12.
20 – 1 =
19
2
|
|
13.
40 – 40 =
0
2
|
14.
46 + 2 =
48
2
|
15.
16 – 13 =
1
3
|
16.
8 + 3 =
11
1
|
|
17.
4 + 8 =
12
1
|
18.
23 + 0 =
23
2
|
19.
1 + 26 =
2
27
|
20.
39 – 20 =
2
19
|
|
1.
2 – 1 =
2
1
|
2.
14 + 15 =
2
29
|
3.
50 – 23 =
2
27
|
4.
10 – 7 =
1
3
|
|
5.
40 – 18 =
2
22
|
6.
46 + 1 =
47
2
|
7.
38 + 0 =
2
38
|
8.
45 – 1 =
44
2
|
|
9.
12 – 7 =
5
1
|
10.
30 – 15 =
15
1
|
11.
9 + 4 =
1
13
|
12.
20 – 1 =
19
2
|
|
13.
40 – 40 =
0
2
|
14.
46 + 2 =
48
2
|
15.
16 – 13 =
1
3
|
16.
8 + 3 =
11
1
|
|
17.
4 + 8 =
12
1
|
18.
23 + 0 =
23
2
|
19.
1 + 26 =
2
27
|
20.
39 – 20 =
2
19
|