Rekensommen met eraf tot 50

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

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