Rekensommen met eraf tot 100

Erafsommen
1.
30
–
10
=
2.
25
–
25
=
3.
30
–
20
=
4.
100
–
60
=
5.
45
–
30
=
6.
80
–
65
=
7.
40
–
30
=
8.
40
–
20
=
9.
85
–
65
=
10.
50
–
40
=
11.
30
–
5
=
12.
100
–
50
=
13.
45
–
25
=
14.
35
–
15
=
15.
15
–
0
=
16.
75
–
55
=
17.
100
–
30
=
18.
35
–
0
=
19.
80
–
55
=
20.
85
–
10
=
21.
20
–
10
=
22.
45
–
35
=
23.
65
–
25
=
24.
35
–
15
=
25.
55
–
0
=
26.
90
–
0
=
27.
35
–
35
=
28.
80
–
25
=
29.
55
–
40
=
30.
90
–
60
=
31.
100
–
25
=
32.
80
–
80
=
33.
25
–
5
=
34.
45
–
30
=
35.
80
–
70
=
36.
45
–
45
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
30
–
10
=
20
2.
25
–
25
=
0
3.
30
–
20
=
10
4.
100
–
60
=
40
5.
45
–
30
=
15
6.
80
–
65
=
15
7.
40
–
30
=
10
8.
40
–
20
=
20
9.
85
–
65
=
20
10.
50
–
40
=
10
11.
30
–
5
=
25
12.
100
–
50
=
50
13.
45
–
25
=
20
14.
35
–
15
=
20
15.
15
–
0
=
15
16.
75
–
55
=
20
17.
100
–
30
=
70
18.
35
–
0
=
35
19.
80
–
55
=
25
20.
85
–
10
=
75
21.
20
–
10
=
10
22.
45
–
35
=
10
23.
65
–
25
=
40
24.
35
–
15
=
20
25.
55
–
0
=
55
26.
90
–
0
=
90
27.
35
–
35
=
0
28.
80
–
25
=
55
29.
55
–
40
=
15
30.
90
–
60
=
30
31.
100
–
25
=
75
32.
80
–
80
=
0
33.
25
–
5
=
20
34.
45
–
30
=
15
35.
80
–
70
=
10
36.
45
–
45
=
0
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen