Supersnelle sommen tot 50

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

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