Rekensommen met eraf tot 100

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

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