Reken de erbijsom tot 50 uit

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

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