Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
29 – 26 =
3
1
|
2.
6 + 37 =
2
43
|
3.
37 + 2 =
39
2
|
4.
35 + 2 =
37
2
|
|
5.
2 + 46 =
48
2
|
6.
46 + 4 =
50
2
|
7.
21 – 6 =
15
1
|
8.
17 – 17 =
0
2
|
|
9.
29 + 13 =
2
42
|
10.
19 – 14 =
5
1
|
11.
45 – 14 =
31
2
|
12.
1 – 0 =
1
2
|
|
13.
4 – 3 =
1
2
|
14.
44 + 1 =
45
2
|
15.
39 + 10 =
2
49
|
16.
45 + 3 =
2
48
|
|
17.
25 – 1 =
2
24
|
18.
39 + 2 =
2
41
|
19.
36 + 5 =
2
41
|
20.
27 + 10 =
2
37
|