Los de som tot 50 op

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

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