Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
17 + 2 =
2
19
|
2.
33 – 5 =
28
2
|
3.
43 + 0 =
43
2
|
4.
37 + 5 =
2
42
|
|
5.
19 – 17 =
2
1
|
6.
38 + 6 =
44
2
|
7.
17 + 15 =
2
32
|
8.
50 – 40 =
1
10
|
|
9.
45 + 1 =
2
46
|
10.
11 – 4 =
7
1
|
11.
29 – 4 =
25
2
|
12.
11 – 11 =
0
2
|
|
13.
48 – 7 =
2
41
|
14.
17 + 28 =
45
2
|
15.
1 – 0 =
2
1
|
16.
36 – 13 =
23
2
|
|
17.
27 – 8 =
2
19
|
18.
34 – 25 =
1
9
|
19.
3 – 1 =
1
2
|
20.
13 – 2 =
1
11
|