Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
8 – 0 =
1
8
|
2.
18 + 16 =
2
34
|
3.
35 + 14 =
2
49
|
4.
36 + 4 =
40
2
|
|
5.
29 + 15 =
2
44
|
6.
10 + 28 =
2
38
|
7.
1 + 14 =
15
1
|
8.
43 + 5 =
48
2
|
|
9.
8 + 25 =
2
33
|
10.
47 + 0 =
2
47
|
11.
40 + 3 =
43
2
|
12.
37 + 1 =
2
38
|
|
13.
27 + 20 =
2
47
|
14.
44 + 2 =
46
2
|
15.
8 + 9 =
2
17
|
16.
22 – 16 =
1
6
|
|
17.
25 – 19 =
1
6
|
18.
17 + 8 =
25
2
|
19.
28 – 13 =
1
15
|
20.
9 + 12 =
2
21
|