Rekensommen met eraf tot 50

Erafsommen
1.
5
–
0
=
2.
50
–
15
=
3.
10
–
5
=
4.
35
–
5
=
5.
25
–
10
=
6.
5
–
0
=
7.
35
–
35
=
8.
35
–
25
=
9.
5
–
0
=
10.
35
–
5
=
11.
30
–
15
=
12.
50
–
10
=
13.
25
–
5
=
14.
20
–
10
=
15.
25
–
0
=
16.
40
–
10
=
17.
50
–
0
=
18.
20
–
10
=
19.
45
–
40
=
20.
10
–
10
=
21.
35
–
5
=
22.
20
–
0
=
23.
40
–
0
=
24.
15
–
0
=
25.
10
–
5
=
26.
30
–
15
=
27.
5
–
0
=
28.
20
–
20
=
29.
20
–
10
=
30.
40
–
15
=
31.
40
–
5
=
32.
45
–
30
=
33.
50
–
25
=
34.
30
–
20
=
35.
20
–
5
=
36.
25
–
15
=
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Rekensommen met eraf tot 50
| ANTWOORDEN

Erafsommen
1.
5
–
0
=
5
2.
50
–
15
=
35
3.
10
–
5
=
5
4.
35
–
5
=
30
5.
25
–
10
=
15
6.
5
–
0
=
5
7.
35
–
35
=
0
8.
35
–
25
=
10
9.
5
–
0
=
5
10.
35
–
5
=
30
11.
30
–
15
=
15
12.
50
–
10
=
40
13.
25
–
5
=
20
14.
20
–
10
=
10
15.
25
–
0
=
25
16.
40
–
10
=
30
17.
50
–
0
=
50
18.
20
–
10
=
10
19.
45
–
40
=
5
20.
10
–
10
=
0
21.
35
–
5
=
30
22.
20
–
0
=
20
23.
40
–
0
=
40
24.
15
–
0
=
15
25.
10
–
5
=
5
26.
30
–
15
=
15
27.
5
–
0
=
5
28.
20
–
20
=
0
29.
20
–
10
=
10
30.
40
–
15
=
25
31.
40
–
5
=
35
32.
45
–
30
=
15
33.
50
–
25
=
25
34.
30
–
20
=
10
35.
20
–
5
=
15
36.
25
–
15
=
10
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen