Reken de erbijsom tot 50 uit

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

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