Oefen de erbijsommen tot 50

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

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