Oefen de erbijsommen tot 50

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

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