Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
14 + 19 =
2
33
|
2.
50 + 0 =
2
50
|
3.
2 + 31 =
2
33
|
4.
10 + 22 =
2
32
|
|
5.
39 + 2 =
2
41
|
6.
24 + 7 =
31
2
|
7.
35 – 1 =
2
34
|
8.
26 + 8 =
34
2
|
|
9.
26 + 6 =
32
2
|
10.
12 – 10 =
2
1
|
11.
46 – 7 =
39
2
|
12.
12 – 3 =
9
1
|
|
13.
47 – 16 =
2
31
|
14.
30 – 10 =
2
20
|
15.
36 + 8 =
2
44
|
16.
22 – 10 =
1
12
|
|
17.
4 – 2 =
2
1
|
18.
29 + 20 =
49
2
|
19.
38 + 8 =
46
2
|
20.
16 + 5 =
2
21
|