Rekensommen met eraf tot 100

Erafsommen
1.
80
–
25
=
2.
25
–
15
=
3.
85
–
55
=
4.
85
–
60
=
5.
95
–
75
=
6.
55
–
5
=
7.
35
–
15
=
8.
90
–
15
=
9.
50
–
45
=
10.
70
–
30
=
11.
15
–
10
=
12.
20
–
15
=
13.
90
–
65
=
14.
60
–
45
=
15.
35
–
25
=
16.
50
–
35
=
17.
20
–
10
=
18.
20
–
10
=
19.
25
–
20
=
20.
20
–
10
=
21.
50
–
10
=
22.
25
–
10
=
23.
40
–
40
=
24.
90
–
75
=
25.
85
–
15
=
26.
10
–
5
=
27.
15
–
15
=
28.
10
–
0
=
29.
95
–
15
=
30.
45
–
5
=
31.
90
–
0
=
32.
50
–
30
=
33.
80
–
40
=
34.
40
–
35
=
35.
60
–
20
=
36.
50
–
15
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
80
–
25
=
55
2.
25
–
15
=
10
3.
85
–
55
=
30
4.
85
–
60
=
25
5.
95
–
75
=
20
6.
55
–
5
=
50
7.
35
–
15
=
20
8.
90
–
15
=
75
9.
50
–
45
=
5
10.
70
–
30
=
40
11.
15
–
10
=
5
12.
20
–
15
=
5
13.
90
–
65
=
25
14.
60
–
45
=
15
15.
35
–
25
=
10
16.
50
–
35
=
15
17.
20
–
10
=
10
18.
20
–
10
=
10
19.
25
–
20
=
5
20.
20
–
10
=
10
21.
50
–
10
=
40
22.
25
–
10
=
15
23.
40
–
40
=
0
24.
90
–
75
=
15
25.
85
–
15
=
70
26.
10
–
5
=
5
27.
15
–
15
=
0
28.
10
–
0
=
10
29.
95
–
15
=
80
30.
45
–
5
=
40
31.
90
–
0
=
90
32.
50
–
30
=
20
33.
80
–
40
=
40
34.
40
–
35
=
5
35.
60
–
20
=
40
36.
50
–
15
=
35
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen