Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
15 – 1 =
14
1
|
2.
14 – 3 =
11
1
|
3.
44 – 13 =
31
2
|
4.
33 + 11 =
2
44
|
|
5.
11 – 3 =
1
8
|
6.
30 + 10 =
40
2
|
7.
29 + 5 =
2
34
|
8.
6 + 33 =
2
39
|
|
9.
39 + 8 =
47
2
|
10.
6 + 43 =
2
49
|
11.
34 + 16 =
50
2
|
12.
25 + 14 =
2
39
|
|
13.
25 + 14 =
2
39
|
14.
32 – 14 =
2
18
|
15.
30 – 2 =
2
28
|
16.
1 – 0 =
1
2
|
|
17.
48 – 0 =
2
48
|
18.
47 + 0 =
47
2
|
19.
24 + 12 =
2
36
|
20.
1 + 40 =
41
2
|