Rekensommen met eraf tot 100

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

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