Reken de erbijsom tot 50 uit

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

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