Reken de erbijsom tot 50 uit

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

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