Rekensommen met eraf tot 100

Erafsommen
1.
10
–
10
=
2.
100
–
25
=
3.
10
–
0
=
4.
70
–
0
=
5.
50
–
40
=
6.
25
–
10
=
7.
25
–
0
=
8.
95
–
15
=
9.
45
–
40
=
10.
35
–
10
=
11.
75
–
40
=
12.
85
–
35
=
13.
15
–
10
=
14.
60
–
50
=
15.
15
–
5
=
16.
70
–
25
=
17.
95
–
15
=
18.
50
–
5
=
19.
40
–
25
=
20.
95
–
80
=
21.
10
–
10
=
22.
35
–
25
=
23.
85
–
35
=
24.
25
–
20
=
25.
60
–
10
=
26.
60
–
10
=
27.
85
–
20
=
28.
55
–
40
=
29.
10
–
5
=
30.
75
–
75
=
31.
60
–
30
=
32.
30
–
15
=
33.
10
–
10
=
34.
70
–
65
=
35.
15
–
15
=
36.
65
–
10
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
10
–
10
=
0
2.
100
–
25
=
75
3.
10
–
0
=
10
4.
70
–
0
=
70
5.
50
–
40
=
10
6.
25
–
10
=
15
7.
25
–
0
=
25
8.
95
–
15
=
80
9.
45
–
40
=
5
10.
35
–
10
=
25
11.
75
–
40
=
35
12.
85
–
35
=
50
13.
15
–
10
=
5
14.
60
–
50
=
10
15.
15
–
5
=
10
16.
70
–
25
=
45
17.
95
–
15
=
80
18.
50
–
5
=
45
19.
40
–
25
=
15
20.
95
–
80
=
15
21.
10
–
10
=
0
22.
35
–
25
=
10
23.
85
–
35
=
50
24.
25
–
20
=
5
25.
60
–
10
=
50
26.
60
–
10
=
50
27.
85
–
20
=
65
28.
55
–
40
=
15
29.
10
–
5
=
5
30.
75
–
75
=
0
31.
60
–
30
=
30
32.
30
–
15
=
15
33.
10
–
10
=
0
34.
70
–
65
=
5
35.
15
–
15
=
0
36.
65
–
10
=
55
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen