Reken de erbijsom tot 50 uit

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

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