Rekensommen met eraf tot 100

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

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