Rekensommen met eraf tot 100

Erafsommen
1.
15
–
5
=
2.
55
–
0
=
3.
15
–
5
=
4.
40
–
5
=
5.
10
–
5
=
6.
15
–
5
=
7.
15
–
0
=
8.
55
–
15
=
9.
25
–
0
=
10.
15
–
5
=
11.
60
–
45
=
12.
35
–
20
=
13.
30
–
0
=
14.
30
–
25
=
15.
70
–
20
=
16.
15
–
15
=
17.
50
–
50
=
18.
100
–
90
=
19.
10
–
5
=
20.
90
–
30
=
21.
55
–
25
=
22.
90
–
0
=
23.
45
–
35
=
24.
30
–
5
=
25.
80
–
55
=
26.
5
–
5
=
27.
100
–
40
=
28.
70
–
5
=
29.
30
–
10
=
30.
100
–
45
=
31.
70
–
25
=
32.
70
–
70
=
33.
40
–
0
=
34.
45
–
25
=
35.
15
–
10
=
36.
85
–
25
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
15
–
5
=
10
2.
55
–
0
=
55
3.
15
–
5
=
10
4.
40
–
5
=
35
5.
10
–
5
=
5
6.
15
–
5
=
10
7.
15
–
0
=
15
8.
55
–
15
=
40
9.
25
–
0
=
25
10.
15
–
5
=
10
11.
60
–
45
=
15
12.
35
–
20
=
15
13.
30
–
0
=
30
14.
30
–
25
=
5
15.
70
–
20
=
50
16.
15
–
15
=
0
17.
50
–
50
=
0
18.
100
–
90
=
10
19.
10
–
5
=
5
20.
90
–
30
=
60
21.
55
–
25
=
30
22.
90
–
0
=
90
23.
45
–
35
=
10
24.
30
–
5
=
25
25.
80
–
55
=
25
26.
5
–
5
=
0
27.
100
–
40
=
60
28.
70
–
5
=
65
29.
30
–
10
=
20
30.
100
–
45
=
55
31.
70
–
25
=
45
32.
70
–
70
=
0
33.
40
–
0
=
40
34.
45
–
25
=
20
35.
15
–
10
=
5
36.
85
–
25
=
60
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen