Reken de erbijsom tot 50 uit

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

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