Reken de erbijsom tot 50 uit

Erbijsommen
1.
0
+
50
=
2.
0
+
20
=
3.
0
+
40
=
4.
50
+
0
=
5.
25
+
10
=
6.
30
+
0
=
7.
20
+
30
=
8.
25
+
25
=
9.
15
+
15
=
10.
45
+
0
=
11.
20
+
25
=
12.
0
+
15
=
13.
30
+
20
=
14.
45
+
5
=
15.
0
+
35
=
16.
5
+
25
=
17.
50
+
0
=
18.
50
+
0
=
19.
15
+
10
=
20.
10
+
25
=
21.
25
+
15
=
22.
25
+
20
=
23.
15
+
25
=
24.
5
+
35
=
25.
30
+
10
=
26.
30
+
5
=
27.
15
+
25
=
28.
30
+
15
=
29.
0
+
45
=
30.
0
+
50
=
31.
50
+
0
=
32.
15
+
35
=
33.
30
+
10
=
34.
30
+
5
=
35.
45
+
0
=
36.
0
+
50
=
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Reken de erbijsom tot 50 uit
| ANTWOORDEN

Erbijsommen
1.
0
+
50
=
50
2.
0
+
20
=
20
3.
0
+
40
=
40
4.
50
+
0
=
50
5.
25
+
10
=
35
6.
30
+
0
=
30
7.
20
+
30
=
50
8.
25
+
25
=
50
9.
15
+
15
=
30
10.
45
+
0
=
45
11.
20
+
25
=
45
12.
0
+
15
=
15
13.
30
+
20
=
50
14.
45
+
5
=
50
15.
0
+
35
=
35
16.
5
+
25
=
30
17.
50
+
0
=
50
18.
50
+
0
=
50
19.
15
+
10
=
25
20.
10
+
25
=
35
21.
25
+
15
=
40
22.
25
+
20
=
45
23.
15
+
25
=
40
24.
5
+
35
=
40
25.
30
+
10
=
40
26.
30
+
5
=
35
27.
15
+
25
=
40
28.
30
+
15
=
45
29.
0
+
45
=
45
30.
0
+
50
=
50
31.
50
+
0
=
50
32.
15
+
35
=
50
33.
30
+
10
=
40
34.
30
+
5
=
35
35.
45
+
0
=
45
36.
0
+
50
=
50
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen