Oefen de erbijsommen tot 50

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

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