Supersnelle sommen tot 50

Erbijsommen
1.
15
+
5
=
25
30
10
20
2.
25
+
25
=
35
45
50
30
3.
45
+
5
=
45
50
35
30
4.
25
+
5
=
30
35
40
20
5.
40
+
5
=
25
45
35
30
6.
50
+
0
=
30
40
35
50
7.
45
+
0
=
40
35
45
30
8.
50
+
0
=
45
50
40
30
9.
50
+
0
=
50
30
40
35
10.
50
+
0
=
50
40
45
30
11.
30
+
10
=
40
35
30
20
12.
35
+
0
=
35
45
40
30
13.
25
+
0
=
15
25
30
20
14.
45
+
5
=
35
40
50
45
15.
35
+
10
=
30
25
45
35
16.
30
+
20
=
35
30
45
50
17.
25
+
10
=
45
35
25
40
18.
20
+
0
=
15
25
20
10
19.
25
+
10
=
40
45
30
35
20.
40
+
0
=
20
40
30
35
21.
45
+
5
=
45
50
35
40
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Supersnelle sommen tot 50
| ANTWOORDEN

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