Rekensommen met eraf tot 50

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

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