Reken de erbijsom tot 50 uit

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

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