Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
39 – 13 =
2
26
|
2.
31 + 8 =
39
2
|
3.
13 + 4 =
2
17
|
4.
7 – 6 =
2
1
|
|
5.
10 + 37 =
47
2
|
6.
13 + 13 =
2
26
|
7.
11 + 23 =
34
2
|
8.
41 + 3 =
44
2
|
|
9.
24 + 16 =
40
2
|
10.
33 + 11 =
44
2
|
11.
45 + 0 =
2
45
|
12.
6 – 4 =
1
2
|
|
13.
36 + 3 =
39
2
|
14.
7 – 2 =
5
1
|
15.
17 – 13 =
4
1
|
16.
48 + 1 =
49
2
|
|
17.
33 – 18 =
1
15
|
18.
49 + 1 =
2
50
|
19.
45 + 5 =
2
50
|
20.
12 – 11 =
1
2
|