Erbij en eraf tot 50
In de mix
|
1.
1 – 0 =
2
1
|
2.
9 – 6 =
3
1
|
3.
21 – 4 =
17
2
|
4.
27 – 26 =
1
2
|
|
5.
47 – 23 =
24
2
|
6.
30 + 9 =
39
2
|
7.
13 + 2 =
15
1
|
8.
19 + 16 =
35
2
|
|
9.
33 + 11 =
44
2
|
10.
16 + 31 =
2
47
|
11.
38 – 38 =
0
2
|
12.
42 + 7 =
49
2
|
|
13.
46 – 20 =
2
26
|
14.
39 – 17 =
2
22
|
15.
49 + 0 =
49
2
|
16.
38 – 27 =
11
1
|
|
17.
15 + 8 =
2
23
|
18.
24 + 9 =
33
2
|
19.
50 – 28 =
2
22
|
20.
29 + 10 =
39
2
|