Reken de erbijsom tot 50 uit

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

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