Erbij en eraf tot 50
In de mix
|
1.
6 + 30 =
2
36
|
2.
1 + 43 =
2
44
|
3.
29 – 27 =
1
2
|
4.
27 + 7 =
34
2
|
|
5.
50 + 0 =
2
50
|
6.
25 – 5 =
20
2
|
7.
38 + 7 =
45
2
|
8.
48 – 8 =
2
40
|
|
9.
39 – 27 =
12
1
|
10.
12 + 1 =
13
1
|
11.
10 + 33 =
2
43
|
12.
3 – 1 =
1
2
|
|
13.
21 + 2 =
2
23
|
14.
40 + 6 =
2
46
|
15.
35 + 10 =
45
2
|
16.
36 – 16 =
20
2
|
|
17.
48 – 7 =
41
2
|
18.
13 – 10 =
1
3
|
19.
15 + 14 =
2
29
|
20.
21 – 10 =
1
11
|