Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
6 – 2 =
4
1
|
2.
44 + 2 =
46
2
|
3.
28 + 3 =
2
31
|
4.
32 + 6 =
38
2
|
|
5.
15 + 13 =
28
2
|
6.
42 – 42 =
0
2
|
7.
12 + 27 =
2
39
|
8.
4 – 3 =
1
2
|
|
9.
7 + 22 =
29
2
|
10.
25 + 13 =
2
38
|
11.
39 + 10 =
2
49
|
12.
18 + 13 =
2
31
|
|
13.
19 + 2 =
21
2
|
14.
48 + 0 =
48
2
|
15.
33 + 14 =
2
47
|
16.
27 – 16 =
1
11
|
|
17.
36 + 6 =
2
42
|
18.
23 + 4 =
27
2
|
19.
33 + 0 =
33
2
|
20.
34 – 32 =
1
2
|