Oefen de erbijsommen tot 50

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

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