Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
38 – 7 =
31
2
|
2.
4 – 0 =
1
4
|
3.
45 + 1 =
2
46
|
4.
34 – 8 =
2
26
|
|
5.
27 – 27 =
0
2
|
6.
40 – 36 =
1
4
|
7.
27 + 1 =
2
28
|
8.
34 + 3 =
2
37
|
|
9.
9 + 22 =
31
2
|
10.
22 + 13 =
35
2
|
11.
31 – 27 =
4
1
|
12.
31 + 11 =
42
2
|
|
13.
49 – 26 =
23
2
|
14.
20 – 1 =
19
2
|
15.
39 + 0 =
39
2
|
16.
50 – 14 =
36
2
|
|
17.
6 – 0 =
6
1
|
18.
18 + 25 =
43
2
|
19.
16 + 16 =
2
32
|
20.
19 – 17 =
2
1
|