Erafsommen tot 50

Erafsommen
1.
10
-
5
=
5
20
2.
20
-
10
=
15
10
3.
45
-
35
=
0
10
4.
45
-
40
=
25
5
5.
15
-
10
=
10
5
6.
5
-
5
=
0
5
7.
10
-
10
=
0
10
8.
30
-
20
=
10
15
9.
25
-
25
=
10
0
10.
20
-
20
=
15
0
11.
15
-
0
=
15
5
12.
30
-
20
=
10
15
13.
40
-
10
=
30
35
14.
35
-
20
=
20
15
15.
5
-
5
=
0
10
16.
20
-
10
=
20
10
17.
20
-
15
=
10
5
18.
30
-
30
=
5
0
19.
45
-
0
=
45
30
20.
20
-
10
=
5
10
21.
30
-
20
=
10
5
22.
5
-
5
=
0
20
23.
25
-
10
=
15
5
24.
40
-
40
=
20
0
25.
10
-
10
=
0
10
26.
40
-
40
=
5
0
27.
25
-
20
=
15
5
28.
10
-
10
=
0
5
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Erafsommen tot 50
| ANTWOORDEN

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