Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
32 + 5 =
2
37
|
2.
25 + 25 =
2
50
|
3.
31 – 28 =
1
3
|
4.
16 – 11 =
1
5
|
|
5.
23 – 6 =
17
2
|
6.
47 + 3 =
50
2
|
7.
31 – 14 =
2
17
|
8.
50 + 0 =
2
50
|
|
9.
45 – 42 =
3
1
|
10.
22 – 20 =
1
2
|
11.
19 + 2 =
21
2
|
12.
24 – 16 =
1
8
|
|
13.
5 – 3 =
2
1
|
14.
29 – 19 =
10
1
|
15.
14 + 22 =
2
36
|
16.
46 + 1 =
2
47
|
|
17.
13 + 12 =
2
25
|
18.
36 + 11 =
47
2
|
19.
34 + 1 =
2
35
|
20.
43 – 23 =
20
2
|