Rekensommen met eraf tot 100

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

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