|
1.
15 – 5 =
10
1
|
2.
2 – 0 =
1
2
|
3.
13 – 0 =
13
1
|
4.
47 + 0 =
47
2
|
|
5.
43 – 20 =
2
23
|
6.
43 – 19 =
24
2
|
7.
4 – 3 =
1
2
|
8.
10 – 8 =
1
2
|
|
9.
7 – 3 =
1
4
|
10.
47 + 1 =
48
2
|
11.
48 + 1 =
2
49
|
12.
29 – 1 =
28
2
|
|
13.
26 – 17 =
1
9
|
14.
38 – 7 =
31
2
|
15.
17 + 2 =
19
2
|
16.
10 – 4 =
6
1
|
|
17.
8 – 2 =
6
1
|
18.
8 + 7 =
1
15
|
19.
31 – 29 =
1
2
|
20.
47 – 46 =
1
2
|
|
1.
15 – 5 =
10
1
|
2.
2 – 0 =
1
2
|
3.
13 – 0 =
13
1
|
4.
47 + 0 =
47
2
|
|
5.
43 – 20 =
2
23
|
6.
43 – 19 =
24
2
|
7.
4 – 3 =
1
2
|
8.
10 – 8 =
1
2
|
|
9.
7 – 3 =
1
4
|
10.
47 + 1 =
48
2
|
11.
48 + 1 =
2
49
|
12.
29 – 1 =
28
2
|
|
13.
26 – 17 =
1
9
|
14.
38 – 7 =
31
2
|
15.
17 + 2 =
19
2
|
16.
10 – 4 =
6
1
|
|
17.
8 – 2 =
6
1
|
18.
8 + 7 =
1
15
|
19.
31 – 29 =
1
2
|
20.
47 – 46 =
1
2
|