Reken de erbijsom tot 50 uit

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

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