Supersnelle sommen tot 50

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

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