Oefen de erbijsommen tot 50

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

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