___ + 3 = 8
___ + 3 = 8 → 5
27 + 2 =
29
52 - 1 =
51
2 + 2 =
4
6 + 7=
13
9 + 1 - 1 =
9
17 + 1 + 2 =
20
0 + 0 =
0
3 + 3 =
6
7 + 3 + 1 =
11
7 + 20 =
27
7 + 7 + 1 =
15
1 + 1 + 1 + 1 + 1 + 7 =
12
15 - 15 =
0
7 + 7 - 1 =
13
___ − 3 = 7
___ − 3 = 7 → 10
10 - 9 =
1
200 - 100 =
100
22 + 5 =
27
53 + 1 =
54
88 - 1 =
87
6 + 6 =
12
68 - 1 =
67
30 - 4 =
26
9 + 20 =
29
7 + 7 =
14
0 - 0 =
0
1 + 7 =
8
8 - 3 =
5
8 - 1 =
7
77 + 1 =
78
9 + 0 + 0 + 0 + 0 + 0 + 0 =
9
14 - 6 =
8
37 - 5 - 2 =
30
100 - 100 + 1 + 1=
2
66 + 1 =
67
1 + 5 + 4 =
10
8 + 20 - 1 =
27
11 - 2 - 3 - 1 =
5
9 - 5 - 1 =
3
9 + ___ = 16
7
7 + ___ = 11
7 + ___ = 11 → 4
11 - 1 - 1 - 1- 1 - 1 - 1 - 1 - 1 - 1 - 1 - 1 =
0
17 + 1 + 3 - 1 =
20
10 - 1 - 1 - 1 - 3 - 1 =
3
34 - 1 =
33
5 + 60 =
65
5 + 8 =
13
30 - 10 =
20
42 - 1 =
41
1000 - 999 =
1
6 + ___ = 11
5
18 - 4 =
14
27 - 4 =
23
14 + 2 =
16
30 + 0 =
30
4 + 4 =
8
10 + 1 =
11
100 - 50 =
50
1 - 1 =
0