Reken de erbijsom tot 50 uit

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

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