Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
14 + 33 =
2
47
|
2.
41 + 9 =
2
50
|
3.
34 + 10 =
2
44
|
4.
11 – 8 =
1
3
|
|
5.
2 – 0 =
1
2
|
6.
23 + 1 =
2
24
|
7.
20 – 19 =
1
2
|
8.
33 – 13 =
20
2
|
|
9.
15 + 29 =
44
2
|
10.
13 + 0 =
13
1
|
11.
38 – 30 =
1
8
|
12.
36 – 4 =
32
2
|
|
13.
36 + 4 =
2
40
|
14.
26 – 16 =
1
10
|
15.
50 – 39 =
1
11
|
16.
19 – 6 =
13
1
|
|
17.
24 – 14 =
1
10
|
18.
24 – 13 =
1
11
|
19.
27 – 5 =
2
22
|
20.
41 + 2 =
43
2
|