Oefen de erbijsom en erafsom tot 50
In de mix
|
1.
32 – 23 =
1
9
|
2.
49 + 1 =
50
2
|
3.
7 + 17 =
24
2
|
4.
37 + 10 =
47
2
|
|
5.
24 + 0 =
24
2
|
6.
10 + 32 =
42
2
|
7.
28 + 18 =
2
46
|
8.
3 + 31 =
2
34
|
|
9.
48 – 37 =
1
11
|
10.
11 + 32 =
43
2
|
11.
50 – 32 =
18
2
|
12.
17 + 0 =
2
17
|
|
13.
43 + 6 =
49
2
|
14.
44 + 4 =
2
48
|
15.
16 + 22 =
2
38
|
16.
25 + 18 =
2
43
|
|
17.
28 – 16 =
12
1
|
18.
2 – 2 =
0
2
|
19.
23 – 19 =
1
4
|
20.
11 – 4 =
7
1
|