Oefen de erbijsommen tot 50

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

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