Los de som tot 50 op

Erbijsommen
1.
10
+
40
=
50
30
2.
50
+
0
=
45
50
3.
30
+
0
=
30
40
4.
15
+
25
=
30
40
5.
45
+
5
=
45
50
6.
5
+
35
=
40
30
7.
5
+
40
=
40
45
8.
5
+
30
=
25
35
9.
0
+
5
=
20
5
10.
30
+
10
=
35
40
11.
35
+
5
=
30
40
12.
10
+
30
=
25
40
13.
30
+
0
=
30
20
14.
5
+
40
=
30
45
15.
5
+
35
=
30
40
16.
15
+
30
=
45
40
17.
10
+
30
=
40
20
18.
15
+
5
=
30
20
19.
15
+
20
=
30
35
20.
5
+
25
=
40
30
21.
50
+
0
=
45
50
22.
40
+
10
=
50
30
23.
5
+
40
=
45
40
24.
5
+
45
=
50
30
25.
10
+
15
=
35
25
26.
25
+
0
=
15
25
27.
10
+
40
=
50
40
28.
10
+
0
=
5
10
© JuniorEinstein.nl
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Los de som tot 50 op
| ANTWOORDEN

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